Please use the PCL process tree to execute the package

What causes this issue?

Package &V1& is loaded by using PCL-CWB interface. Using of the IMG can
lead to inconsistencies for the package.

How to fix this error?

Please use the PCL process tree in control system to execute the
package.

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.