Field & does not exist in table &

What causes this issue?

You attempted to call up the function module FURTHER_VALUES_POPUP. In
this case, a field name was transferred which is not listed in the Data
Dictionary.

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?

Call the SAP hotline and report the error which occurred.

Error message extract from SAP system. Copyright SAP SE.