my guess is that one of the http endpoint AppLounge contacts was intermittingly in some state of reconfiguration, thus you hitting some self-signed cert that your phones ssl trust store (“anchor”) cannot for good reasons validate.
maybe you’re with a DNS provider that hijacks one of the domains, should be the gtoken one affected.
Do you use any extra security software on the network, adblocking techniques, pihole/adaway?
It’s not impossible the gtoken url filters some network origin, so disable vpn/tor and use another wifi or the mobile data connection to check what happens.