Failed to run a 1.00 timer in 'BetterChatFilter v1.7.2' (NullReferenceException: Object reference not set to an instance of an object)
  at Oxide.Plugins.BetterChatFilter.CheckBan () [0x00069] in <37d7b72b98e448d38862b69d6bc53ad5>:0

  at Oxide.Plugins.BetterChatFilter.<banTimer>b__39_0 () [0x00000] in <37d7b72b98e448d38862b69d6bc53ad5>:0

  at Oxide.Core.Libraries.Timer+TimerInstance.FireCallback () [0x00018] in <b76ec77c47d1449e92b2baab8603843d>:0

same thing. All I did was reload better chat and it threw this error for better chat filter

Failed to run a 1.00 timer in 'BetterChatFilter v1.7.2' (NullReferenceException: Object reference not set to an instance of an object)
  at Oxide.Plugins.BetterChatFilter.CheckBan () [0x00069] in <aeb7531953a44ec9a6bee9622cd3fe44>:0 
  at Oxide.Plugins.BetterChatFilter.<banTimer>b__39_0 () [0x00000] in <aeb7531953a44ec9a6bee9622cd3fe44>:0 
  at Oxide.Core.Libraries.Timer+TimerInstance.FireCallback () [0x00018] in <b76ec77c47d1449e92b2baab8603843d>:0

reverted till proper solution is found