Text was changed and saved in the OTR

What causes this issue?

An exception class text was changed in the OTR.
This change was not reset when the changes to the exception class were
rejected.

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.