Cannot join realm from iOS (iPad)

Cannot get into realm nor worlds I have created.  I play on an iPad Air 2 software version 13.3.1 and also have tried on my iPhone XS 13.3.1 software version ......unable to get on for 2 weeks at least, but my friends on the realm can still play.  I was told this is not enough info, but I don’t know what else I can give you so you can “recreate “ the problem.  I will attached pictures again of what it looks like when i try to get on.  This is very frustrating.