UCP Templates / Edit - > Error! Something went wrong

Hi,
When trying to edit the UCP template that is created by default or when trying to edit a template created from 0, when clicking the edit button (drawing of an eye), a window appears with the following error "Error! Something went wrong".

Userman: 15.0.43

Query the server by clicking the edit button:
URL: http://pbx/admin/ajax.php?module=userman&command=redirectUCP
POST DATA: id=2&key=9ad2ad1a-f872-42e4-a2e3-3f94dd30e684
RESPONE:

{"status":false,"message":"Error! Something went wrong"}