Try enabling debug console and you’ll probably have more info about the error

These kinds of errors when removing things often has the cause in errors in the reference cache.

When you remove things, reference cache is used to find which other objects to remove or check for existence.

You could try to refresh “Reference Cache” in the application to see if that helps.

If not you need someone to look into the problem in deep. I suggest you create a support case for it then.

Hi @klorimer 

This can happen when 'Reference Cache' & 'Security Cache' contains objects which already not in the database. Then clear the 'Reference Cache' & 'Security Cache' and try again. sometimes this can be helpful to resolve the issue.

Regards
Shan

Hi…

Yes we usually refresh Reference Cache after you have deployed any view (package) which changes the reference information about the LU's. The Reference cache manages data needed for checking of referential integrity. The Reference cache is used any time you remove data in any client.

Regards,

Hiroshi