mistakes-made

$ rm -rf ~/.cache
$ sudo rm -rf /tmp/ /var/tmp/

now-this

$ kstart plasmashell
kstart(3443) main: Omitting both --window and --windowclass arguments is not recommended 
vedant@vedant-Galago-UltraPro:~$ kscreen: Primary output changed from KScreen::Output(Id: 67 , Name: "eDP1" ) ( "eDP1" ) to KScreen::Output(Id: 67 , Name: "eDP1" ) ( "eDP1" )
org.kde.plasma: unversioned plugin detected, may result in instability
org.kde.plasma: unversioned plugin detected, may result in instability
org.kde.plasma: unversioned plugin detected, may result in instability
org.kde.plasma: unversioned plugin detected, may result in instability
org.kde.plasma: unversioned plugin detected, may result in instability
org.kde.plasma: unversioned plugin detected, may result in instability
org.kde.plasma: unversioned plugin detected, may result in instability
org.kde.plasma: unversioned plugin detected, may result in instability
org.kde.plasma: unversioned plugin detected, may result in instability
org.kde.plasma: unversioned plugin detected, may result in instability
org.kde.plasma: unversioned plugin detected, may result in instability
org.kde.plasma: unversioned plugin detected, may result in instability
org.kde.plasma: unversioned plugin detected, may result in instability
org.kde.plasma: unversioned plugin detected, may result in instability
org.kde.plasma: unversioned plugin detected, may result in instability
org.kde.plasma: unversioned plugin detected, may result in instability
org.kde.plasma: unversioned plugin detected, may result in instability
org.kde.plasma: unversioned plugin detected, may result in instability
org.kde.plasma: unversioned plugin detected, may result in instability
org.kde.plasma: unversioned plugin detected, may result in instability
org.kde.plasma: unversioned plugin detected, may result in instability
org.kde.plasma: unversioned plugin detected, may result in instability
org.kde.plasma: unversioned plugin detected, may result in instability
org.kde.plasma: unversioned plugin detected, may result in instability
org.kde.plasma: unversioned plugin detected, may result in instability
Both point size and pixel size set. Using pixel size.
Both point size and pixel size set. Using pixel size.
Both point size and pixel size set. Using pixel size.
Both point size and pixel size set. Using pixel size.
qml: Reading resources from configuration: [{"alias":"core 1","sourceName":"lmsensors/coretemp-isa-0000/Core_0"},{"alias":"thermal zone 1","sourceName":"acpi/Thermal_Zone/0/Temperature"}]
qml: adding source: lmsensors/coretemp-isa-0000/Core_0
qml: adding to sta
qml: adding source: acpi/Thermal_Zone/0/Temperature
qml: adding to sta
QFont::setPointSizeF: Point size <= 0 (0.000000), must be greater than 0
qml: getTemperature: 0
QFont::setPointSizeF: Point size <= 0 (0.000000), must be greater than 0
QFont::setPointSizeF: Point size <= 0 (0.000000), must be greater than 0
qml: Reading resources from configuration: [{"alias":"core 1","sourceName":"lmsensors/coretemp-isa-0000/Core_0"},{"alias":"thermal zone 1","sourceName":"acpi/Thermal_Zone/0/Temperature"}]
qml: adding source: lmsensors/coretemp-isa-0000/Core_0
qml: adding to sta
qml: adding source: acpi/Thermal_Zone/0/Temperature
qml: adding to sta
QFont::setPointSizeF: Point size <= 0 (0.000000), must be greater than 0
qml: getTemperature: 0
QFont::setPointSizeF: Point size <= 0 (0.000000), must be greater than 0
QFont::setPointSizeF: Point size <= 0 (0.000000), must be greater than 0
QFont::setPointSizeF: Point size <= 0 (0.000000), must be greater than 0
qml: getTemperature: 0
QFont::setPointSizeF: Point size <= 0 (0.000000), must be greater than 0
QFont::setPointSizeF: Point size <= 0 (0.000000), must be greater than 0
file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/AppletAppearance.qml:46: TypeError: Cannot read property of null
file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/AppletAppearance.qml:51: TypeError: Cannot read property of null
file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/AppletAppearance.qml:46: TypeError: Cannot read property of null
file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/AppletAppearance.qml:51: TypeError: Cannot read property of null
file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/AppletAppearance.qml:46: TypeError: Cannot read property of null
file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/AppletAppearance.qml:51: TypeError: Cannot read property of null
file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/AppletAppearance.qml:46: TypeError: Cannot read property of null
file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/AppletAppearance.qml:51: TypeError: Cannot read property of null
file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/AppletAppearance.qml:46: TypeError: Cannot read property of null
file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/AppletAppearance.qml:51: TypeError: Cannot read property of null
file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/AppletAppearance.qml:46: TypeError: Cannot read property of null
file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/AppletAppearance.qml:51: TypeError: Cannot read property of null
file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/AppletAppearance.qml:46: TypeError: Cannot read property of null
file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/AppletAppearance.qml:51: TypeError: Cannot read property of null
file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/AppletAppearance.qml:46: TypeError: Cannot read property of null
file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/AppletAppearance.qml:51: TypeError: Cannot read property of null
file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/AppletAppearance.qml:46: TypeError: Cannot read property of null
file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/AppletAppearance.qml:51: TypeError: Cannot read property of null
file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/AppletAppearance.qml:46: TypeError: Cannot read property of null
file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/AppletAppearance.qml:51: TypeError: Cannot read property of null
No metadata file in the package, expected it at: "/usr/share/wallpapers/Next/contents/images//metadata.desktop"
No metadata file in the package, expected it at: "/usr/share/wallpapers/Next/contents/images//metadata.desktop"
No metadata file in the package, expected it at: "/usr/share/wallpapers/Next/contents/images//metadata.desktop"
kscreen: Primary output changed from KScreen::Output(Id: 67 , Name: "eDP1" ) ( "eDP1" ) to KScreen::Output(Id: 67 , Name: "eDP1" ) ( "eDP1" )
networkmanager-qt: void NetworkManager::NetworkManagerPrivate::propertiesChanged(const QVariantMap&) Unhandled property "AllDevices"
networkmanager-qt: void NetworkManager::NetworkManagerPrivate::propertiesChanged(const QVariantMap&) Unhandled property "Devices"
networkmanager-qt: void NetworkManager::NetworkManagerPrivate::propertiesChanged(const QVariantMap&) Unhandled property "GlobalDnsConfiguration"
networkmanager-qt: void NetworkManager::NetworkManagerPrivate::propertiesChanged(const QVariantMap&) Unhandled property "Metered"
Could not resolve property : radialGradient4782
Could not resolve property : radialGradient4857
Could not resolve property : radialGradient4883
Could not resolve property : radialGradient4885
org.kde.plasma: Could not load plugin info for plugin : "org.kde.weatherWidget" skipping plugin
org.kde.plasma: Could not load plugin info for plugin : "org.kde.thermalMonitor" skipping plugin
org.kde.plasma: Could not load plugin info for plugin : "eu.blumenstingl.martin.keystateplasmoid" skipping plugin
org.kde.plasma: Could not load plugin info for plugin : "org.kde.weatherWidget" skipping plugin
org.kde.plasma: Could not load plugin info for plugin : "org.kde.thermalMonitor" skipping plugin
org.kde.plasma: Could not load plugin info for plugin : "eu.blumenstingl.martin.keystateplasmoid" skipping plugin
org.kde.plasma: Could not load plugin info for plugin : "org.kde.weatherWidget" skipping plugin
org.kde.plasma: Could not load plugin info for plugin : "org.kde.thermalMonitor" skipping plugin
org.kde.plasma: Could not load plugin info for plugin : "eu.blumenstingl.martin.keystateplasmoid" skipping plugin
org.kde.plasma: Could not load plugin info for plugin : "org.kde.weatherWidget" skipping plugin
org.kde.plasma: Could not load plugin info for plugin : "org.kde.thermalMonitor" skipping plugin
org.kde.plasma: Could not load plugin info for plugin : "eu.blumenstingl.martin.keystateplasmoid" skipping plugin
org.kde.plasma: Could not load plugin info for plugin : "org.kde.weatherWidget" skipping plugin
org.kde.plasma: Could not load plugin info for plugin : "org.kde.thermalMonitor" skipping plugin
org.kde.plasma: Could not load plugin info for plugin : "eu.blumenstingl.martin.keystateplasmoid" skipping plugin
org.kde.plasma: Could not load plugin info for plugin : "org.kde.weatherWidget" skipping plugin
org.kde.plasma: Could not load plugin info for plugin : "org.kde.thermalMonitor" skipping plugin
org.kde.plasma: Could not load plugin info for plugin : "eu.blumenstingl.martin.keystateplasmoid" skipping plugin
org.kde.plasma: Could not load plugin info for plugin : "org.kde.weatherWidget" skipping plugin
org.kde.plasma: Could not load plugin info for plugin : "org.kde.thermalMonitor" skipping plugin
org.kde.plasma: Could not load plugin info for plugin : "eu.blumenstingl.martin.keystateplasmoid" skipping plugin
org.kde.plasma: Could not load plugin info for plugin : "org.kde.weatherWidget" skipping plugin
org.kde.plasma: Could not load plugin info for plugin : "org.kde.thermalMonitor" skipping plugin
org.kde.plasma: Could not load plugin info for plugin : "eu.blumenstingl.martin.keystateplasmoid" skipping plugin
org.kde.plasma: Could not load plugin info for plugin : "org.kde.weatherWidget" skipping plugin
org.kde.plasma: Could not load plugin info for plugin : "org.kde.thermalMonitor" skipping plugin
org.kde.plasma: Could not load plugin info for plugin : "eu.blumenstingl.martin.keystateplasmoid" skipping plugin
org.kde.plasma: Could not load plugin info for plugin : "org.kde.weatherWidget" skipping plugin
org.kde.plasma: Could not load plugin info for plugin : "org.kde.thermalMonitor" skipping plugin
org.kde.plasma: Could not load plugin info for plugin : "eu.blumenstingl.martin.keystateplasmoid" skipping plugin
org.kde.plasma: Could not load plugin info for plugin : "org.kde.weatherWidget" skipping plugin
org.kde.plasma: Could not load plugin info for plugin : "org.kde.thermalMonitor" skipping plugin
org.kde.plasma: Could not load plugin info for plugin : "eu.blumenstingl.martin.keystateplasmoid" skipping plugin
org.kde.plasma: Could not load plugin info for plugin : "org.kde.weatherWidget" skipping plugin
org.kde.plasma: Could not load plugin info for plugin : "org.kde.thermalMonitor" skipping plugin
org.kde.plasma: Could not load plugin info for plugin : "eu.blumenstingl.martin.keystateplasmoid" skipping plugin
org.kde.plasma: Could not load plugin info for plugin : "org.kde.weatherWidget" skipping plugin
org.kde.plasma: Could not load plugin info for plugin : "org.kde.thermalMonitor" skipping plugin
org.kde.plasma: Could not load plugin info for plugin : "eu.blumenstingl.martin.keystateplasmoid" skipping plugin
org.kde.plasma: Could not load plugin info for plugin : "org.kde.weatherWidget" skipping plugin
org.kde.plasma: Could not load plugin info for plugin : "org.kde.thermalMonitor" skipping plugin
org.kde.plasma: Could not load plugin info for plugin : "eu.blumenstingl.martin.keystateplasmoid" skipping plugin
Both point size and pixel size set. Using pixel size.
Both point size and pixel size set. Using pixel size.
Both point size and pixel size set. Using pixel size.
Both point size and pixel size set. Using pixel size.
"1 instead of 2 arguments to message {%1 %2} supplied before conversion."
Both point size and pixel size set. Using pixel size.
Both point size and pixel size set. Using pixel size.
Both point size and pixel size set. Using pixel size.
Both point size and pixel size set. Using pixel size.
file:///usr/share/plasma/plasmoids/org.kde.plasma.digitalclock/contents/ui/DigitalClock.qml:444:5: QML Text: Cannot anchor to a null item.
Both point size and pixel size set. Using pixel size.
Both point size and pixel size set. Using pixel size.
Known plasmoid ids: QHash(("org.kde.muonnotifier", 96))
org.kde.plasma: Could not load plugin info for plugin : "org.kde.weatherWidget" skipping plugin
org.kde.plasma: Could not load plugin info for plugin : "org.kde.thermalMonitor" skipping plugin
org.kde.plasma: Could not load plugin info for plugin : "eu.blumenstingl.martin.keystateplasmoid" skipping plugin
org.kde.plasma: unversioned plugin detected, may result in instability
<Unknown File>: QML Plasmoid: Cannot anchor to an item that isn't a parent or sibling.
<Unknown File>: QML Plasmoid: Cannot anchor to an item that isn't a parent or sibling.
<Unknown File>: QML Plasmoid: Cannot anchor to an item that isn't a parent or sibling.
<Unknown File>: QML Plasmoid: Cannot anchor to an item that isn't a parent or sibling.
org.kde.plasma.pulseaudio: Attempting connection to PulseAudio sound daemon

Almost all the necessary kde apps are not running