Text ID & is already present in the text determination procedure

What causes this issue?

You wanted copy text type '&V1&' to text determination procedure '&V2&'
either by inserting or appending it, even though it already exists in
this procedure.

System Response

The system does not allow the text type to be added.

How to fix this error?

Reset your entry by overwriting text type '&V1&' with the original (or
with blank spaces).

Error message extract from SAP system. Copyright SAP SE.