When I login to manychat on my windows 11 laptop, I get a white screen.  I do not have a problem when I log in using my iMac pro.   I run Norton Internet Security and also use CCleaner.  i am also using NORD VPN on the windows laptop, but not the iMac pro..  I also get a white screen when i click the “get started for free” button.  How do I overcome this?