JWT error on creating corporate account

I’m getting an error when trying to create a corporate account - I’ve not had an account using my work email before (I’m a new joiner to this company)

It’s coming up saying ‘JWT expired’ or ‘Server_Error: JWT expired’

I’ve tried clearing caches / cookies / using incognito, I’ve checked the system time which is syncing fine, and I’ve rebooted twice - all not working