Successor activity "&1" is currently running

What causes this issue?

The successor activity "&V1&" (pogram &V2&) is active and its status
should be reseted after the execution of the current activity. For this
reason both activities can not be executed simultaneously.

System Response

The activity "&V3&" can not be started.

How to fix this error?

Wait until the successor activity "&V1&" is finished and start the
activity again.

Error message extract from SAP system. Copyright SAP SE.