The homepage sometimes works fine in logged out state. I tried with several VPNs no cokies no cache and it worked one time out of 10 from a French IP all other from FR, USA and GB were error 500 even the homepage logged out.
The only thing that works is blocking for German or Dutch IPs.
Oh, that's something unusual.. some have reported that it worked fine for them 🤔
Below is a short screen recording that I just uploaded. Still failing on your end?
https://streamable.com/txg60f