Text foreign key for table & is already defined:

What causes this issue?

There is usually only one text table for a check table.
In this case, a text foreign key which already has more foreign keys
was defined for a check table.
The text tables which already exist are listed in the next log lines.

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?

Check whether this table or the listed text tables are really a text
table for the check table.
If several text tables were defined, this can result in problems if
text for a table is automatically read.
This is true for example for the possible values function and when
generating maintenance views.

Error message extract from SAP system. Copyright SAP SE.