Iphone XS Max IOS Beta Crashes

My Iphone XS Max With IOS 12 newest Beta is having issues.

It Crashes completely random. It's first starting to freeze and then a black screen is coming up.

The first few times it startet to come back normally 2 Minutes later but it's getting worse.

The last time it went down for 10 minutes and now it's for almost 2 hours, but i can let it play a

sound from the apple watch. The Camera will not open over the Watch. what can i do ?


btw: i also tried the Soft reset a few times. It's doing nothing.


Thanks for your Help !