I’ve been having the same issue since 20Mar2023. I’ve tried restarting my network, my friends network, shutting down the Ps5 and unplugging for awhile, & still nothing. I even tried playing the ps4 version & nothing from that either.
It seems like more and more people are running into this as the week goes on. It blows my mind that my roommate sitting right next to me can log onto his account just fine but mine gets blocked by an error. I am sad, but also slightly relieved, that I’m not the only person who’s tried all the “this is how you fix this error” tips and tricks online but with no results. Really hope they can fix this before the event is over, kind of sad we miss out when it’s not our faults we can’t sign in.