ADE 4.5.6 crashes after installation

Hi,

I installed​​ ADE​ a few times, because I had problems with crashes. After every new installation I receive an announcement from old media, which do not exist any​ more. If I try to delete it,  ADE crashes again. I suppose, the information about old media comes from Adobe, although I am not a user of their cloud. What's to do? Can I delete this information in Adobe-online somewhere? I did found nothing in the uuid mangement.