YouTube description does not allow brackets so the entire process cannot be posted here in text form.
You can find the npsso value for your login at https://ca.account.sony.com/api/v1/ss... make sure to actually log in to the Sony website first at https://www.playstation.com/enus/sup...
You can also find this exact fix at https://www.gog.com/forum/general_bet...
I thought a visual aid would be useful, idk.