[19/02/2020 17:36:46] Failed to call hook 'OnServerInitialized' on plugin 'EnhancedBanSystem v5.2.4' (NullReferenceException: Object reference not set to an instance of an object)
  at Oxide.Plugins.EnhancedBanSystem.Files_Load () [0x00031] in <b167451ffb8c498081744fc3e936cc4b>:0
  at Oxide.Plugins.EnhancedBanSystem.OnServerInitialized () [0x0003c] in <b167451ffb8c498081744fc3e936cc4b>:0
  at Oxide.Plugins.EnhancedBanSystem.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x013e2] in <b167451ffb8c498081744fc3e936cc4b>:0
  at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <33f7c42a56934dae8ec04b11017dce31>:0
  at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <b0a93b504f034a0db8b1c3d2503c0987>:0
  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <b0a93b504f034a0db8b1c3d2503c0987>:0

As far as i can tell it started yesterday/today

Error seems tobe triggered onServerSave as well.

Merged post

After removing data files and config for new files errors are gone. Guess a corruption happened.