(10:03:45) | Loaded plugin ServerRewards v0.4.67 by k1lly0u (10:03:52) | Unloaded plugin ServerRewards v0.4.67 by k1lly0u (10:03:52) | [ServerRewards] All UI elements have been successfully generated! (10:03:52) | Failed to call hook 'ImportImageList' on plugin 'ImageLibrary v2.0.43' (NullReferenceException: Object reference not set to an instance of an object) at Oxide.Plugins.ImageLibrary.ImportImageList (System.String title, System.Collections.Generic.Dictionary`2[TKey,TValue] imageList, System.UInt64 imageId, System.Boolean replace, System.Action callback) [0x000be] in <46174df6c85545739b2ae1cbde210fec>:0
at Oxide.Plugins.ImageLibrary.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x00888] in <46174df6c85545739b2ae1cbde210fec>:0
at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <9affce1cd15c4ec183941adef8db1722>:0
at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <4452f821def6406d834e4149849fe7ea>:0
at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <4452f821def6406d834e4149849fe7ea>:0

error after todays update

Did you update ImageLibrary like was mentioned in the update notes?

yes, look in log is:

Failed to call hook 'ImportImageList' on plugin 'ImageLibrary v2.0.43' 

fixed with version 2.0.44 :)