@Jenn5795 A quick read of this forum will tell you that you are not alone. Listing suspensions just like yours have become an epidemic. They won’t give you any information usually, and you just have to wait it out and hope it doesn’t last long. Have you had any disgruntled guests recently who may have made a complaint against you, even if bogus?
Hopefully you save your guest phone numbers and can call or text if needed.