After upload plugin by first time and restart server, show this message:

Failed to run a 1.00 timer in 'BuildingSkins v2.0.8' (NullReferenceException: Object reference not set to an instance of an object) at Oxide.Plugins.BuildingSkins.OnPlayerConnected (BasePlayer player) [0x00073] in <327d0212b08448e990efb8688807455f>:0
at Oxide.Plugins.BuildingSkins+<>cDisplayClass14_0.<OnPlayerConnected>b0 () [0x00000] in <327d0212b08448e990efb8688807455f>:0
at Oxide.Core.Libraries.Timer+TimerInstance.FireCallback () [0x00018] in <beb2b64691c64e2b95b99491bd85442c>:0

i try with last and old version but both show same error message.

please, if anyone can help me.