You can resolve this in 2 ways.
1. Add the CA Vtape library to link list or as a STEPLIB in the TMSCLEAN step.
2. Using TMSUPDTE remove the ROBTY of VCAVTAPE from each of the volsers that belong to CA Vtape.
In either case you should still run the programs provided by CA Vtape to sync Vtape and CA 1. For resolution 1 you should run the sync once a month and for resolution 2 you should run it every day.