SYST: Function module & used incorrectly; report to system support

What causes this issue?

Function module '&v1&' was internally called up incorrectly.

System Response

Processing is terminated.

How to fix this error?

This is caused by a program error and you should contact SAP Support.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.