Bungee Error BTLP

BungeeError.log

4:24:22 [WARNING] [BungeeTabListPlus] Failed to load default.yml
Cannot create property=size for JavaBean=codecrafter47.bungeetablistplus.config.DynamicSizeConfig@53ed09e8
 in 'reader', line 16, column 1:
    showTo: "all"
    ^
Unable to find property 'size' on class: codecrafter47.bungeetablistplus.config.DynamicSizeConfig
 in 'reader', line 121, column 7:
    size: 60 # 60 slots -> 3 columns, 20 rows
          ^

    at codecrafter47.bungeetablistplus.libs.snakeyaml.constructor.Constructor$ConstructMapping.constructJavaBean2ndStep(Constructor.java:312)
    at codecrafter47.bungeetablistplus.libs.snakeyaml.constructor.Constructor$ConstructMapping.construct(Constructor.java:189)
    at codecrafter47.bungeetablistplus.libs.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:182)
    at codecrafter47.bungeetablistplus.yamlconfig.YamlConfig$MyConstructor.constructObject(YamlConfig.java:245)
    at codecrafter47.bungeetablistplus.libs.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:141)
    at codecrafter47.bungeetablistplus.libs.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:127)
    at codecrafter47.bungeetablistplus.libs.snakeyaml.Yaml.loadFromReader(Yaml.java:450)
    at codecrafter47.bungeetablistplus.libs.snakeyaml.Yaml.loadAs(Yaml.java:410)
    at codecrafter47.bungeetablistplus.yamlconfig.YamlConfig.read(YamlConfig.java:102)
    at codecrafter47.bungeetablistplus.yamlconfig.YamlConfig.read(YamlConfig.java:98)
    at codecrafter47.bungeetablistplus.managers.TabListManager.loadTabLists(TabListManager.java:67)
    at codecrafter47.bungeetablistplus.BungeeTabListPlus.onEnable(BungeeTabListPlus.java:346)
    at codecrafter47.bungeetablistplus.BungeePlugin.onEnable(BungeePlugin.java:40)
    at net.md_5.bungee.api.plugin.PluginManager.enablePlugins(PluginManager.java:227)
    at net.md_5.bungee.BungeeCord.start(BungeeCord.java:281)
    at net.md_5.bungee.BungeeCordLauncher.main(BungeeCordLauncher.java:56)
    at net.md_5.bungee.Bootstrap.main(Bootstrap.java:15)
Caused by: codecrafter47.bungeetablistplus.libs.snakeyaml.error.YAMLException: Unable to find property 'size' on class: codecrafter47.bungeetablistplus.config.DynamicSizeConfig
    at codecrafter47.bungeetablistplus.libs.snakeyaml.introspector.PropertyUtils.getProperty(PropertyUtils.java:132)
    at codecrafter47.bungeetablistplus.libs.snakeyaml.introspector.PropertyUtils.getProperty(PropertyUtils.java:121)
    at codecrafter47.bungeetablistplus.libs.snakeyaml.constructor.Constructor$ConstructMapping.getProperty(Constructor.java:322)
    at codecrafter47.bungeetablistplus.libs.snakeyaml.constructor.Constructor$ConstructMapping.constructJavaBean2ndStep(Constructor.java:240)
    ... 16 more