Storage, Clear Cache
... for the Play Store app ...
but you've done that.
I have a post in Tips, search for:
Apps crashing on your beta - try this
... give it a go
Hello @TheFamilyMan ,
Thank you for your feedback. If you haven’t already, Please update Samsung members app to latest version from galaxy store and send us an error report immediately after experiencing the issue from the Samsung member’s app -> Beta Feedback -> Error Reports to help us debug the issue. We apologize for the inconvenience and appreciate your contribution to the beta program.
One UI Beta Team