Have just reinstalled CuteSoft_Client folder and double checked all contents successfully in place.

All seems to work except I get a constant occurring error  'Failed to load menus!500'.

 

Any suggestions what this could be due to?

Incidentally I'm using <add key="CuteEditorDefaultFilesPath" value="~/../CuteSoft_Client/CuteEditor" /> as a means to map to all the relevant files.