plex.log

tail -f /var/lib/plexmediaserver/Library/Application\ Support/Plex\ Media\ Server/Logs/Plex\ Media\ Server.log |grep -v DEBUG
Dec 31, 2019 11:48:59.791 [0x7fce6f7fe700] WARN - Denying access due to session lacking permission to transcode key /library/metadata/23013
Dec 31, 2019 11:49:05.413 [0x7fce2d7fa700] WARN - SLOW QUERY: It took 330.000000 ms to retrieve 50 items.
Dec 31, 2019 11:49:12.902 [0x7fce2d7fa700] ERROR - Error opening conversion context from IBM855 to utf-8
Dec 31, 2019 11:49:12.931 [0x7fcdf77fe700] ERROR - [Transcoder] /var/lib/plexmediaserver/Library/Application Support/Plex Media Server/Cache/Transcode/Sessions/plex-transcode-17j7zjy5wd4nesl9beqrzj3e-0d82e7e3-6ca2-47ea-9f7e-ed23a558a4a9/temp-0.srt: Invalid data found when processing input
Dec 31, 2019 11:49:12.934 [0x7fce2d7fa700] ERROR - [TranscodeOutputStream] Streaming Session 0x7fcda821ac90 appears to have died from under us
Dec 31, 2019 11:49:13.049 [0x7fce877fe700] ERROR - Session 0x7fcda821ac90 terminated
Dec 31, 2019 11:49:13.738 [0x7fce77fff700] ERROR - Unable to find client profile for device; platform=webOS, platformVersion=4.7.0, device=, model=55UM6910PUC
Dec 31, 2019 11:49:13.957 [0x7fce2d7fa700] ERROR - Unable to find client profile for device; platform=webOS, platformVersion=4.7.0, device=, model=55UM6910PUC
Dec 31, 2019 11:49:14.365 [0x7fcd98ff9700] WARN - SLOW QUERY: It took 280.000000 ms to retrieve 50 items.
Dec 31, 2019 11:49:14.370 [0x7fce2d7fa700] ERROR - Unknown metadata type: folder
Dec 31, 2019 11:49:21.165 [0x7fcd98ff9700] WARN - Denying access due to session lacking permission to transcode key /library/metadata/23013

Did you manage to fix it?