two options: load firmware 20.11 into PLC CPU, OR, update RS5000 to include firmware V21.11 then change the project CPU firmware to 21.11. the versions between CPU and project in RS5000 have to match or you cant go online.
for RSview32, VBA launches as an external app and it wont switch to it automatically when launched from rsview, dont know if your toolbar is hidden or not but alt tab to make sure its not actually running. if nothing happen probably have to reinstall rsview. check activity log and windows event...