Formatting for object key "&1 &2" ended

trados = docu -> bc -> bcsrvgbt

What causes this issue?

The formatting of the object key for the following object was
terminated.
Object type: &V1&
Object key: &V2&
Logical system: &V3&

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.