A removed addon keeps reporting warning

I installed an addon called Gizmo Pro. Later I found it brings more trouble than value, so I removed it. After that I keep getting this warning when switching between Edit and Object Mode:


I really don’t want to reset the whole Blender just for this. Is there an easier way to get rid of this (or find what causes this warning)?

I’d put the tool back first, see if you no longer get the error. Then uncheck the tool but dont remove it. close/open blender. Remove the addon, close/open blender and in theory there should be nothing left to indicate it’s existence.