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.
How do you locate the CA Vtape library name?
If this is a STEPLIB, please go to your Vtape started task, it should be in that started task. If it is not there, you will need to look in your LINKLIST library but you will have to know the name. We won't know what the name will be on our end. You could also contact your system administrator who should know what the name is.