Welcome to the community. Lets see if we cant figure this out for you. First thing, since you have this set for the whole site under site settings, I am unable to diagnose from here.
This will have to go through Webflow support. @rileyrichter @Brando @cyberdave @johnramos do you guys have any thoughts as to why this is happening.
I also tried to use the given password and I get a 401 error and then a 400 Bad Error page when I attempt a 2nd/3rd time.
Brandon