Selection screen & & was not called using CALL SELECTION-SCREEN

What causes this issue?

You wanted to process screen "&V1& &V2&". This is a selection screen,
generated from PARAMETERS, SELECT-OPTIONS and SELECTION-SCREEN
statements.
You can only call a selection screen with the "CALL SELECTION-SCREEN"
statement, or as the initial screen of a report, transaction or dialog
module. However, this is not the case here.

System Response

The system terminated the program.

How to fix this error?

Contact the program author or your SAP contact person.

Error message extract from SAP system. Copyright SAP SE.