Hotspot Shield not working after installing Avast Free AV

I’ve just installed Avast Free AV for the first time and now Hotspot Shield won’t work.

An error message appears saying ‘Hotspot Shield has detected an internal error. FIX IT NOW’ I click on the FIX IT NOW and another message appears satubg “Hotspot Shield has stopped working. A problem caused the program to stop working correctly. Windows will close the profram and notify uou if a solution is available.” I close the program and don’t get a message.

Does Avast AV prevent Hotspot Shield from working? If so, is there a list of VPNs that do work with Avast?