Error when try to change name of domain

Shopware 5 International (English Only)
1

Hi 

I have a problem with updating plugins

The error - „Error code: UserShopsException-0“ 

I think problem is in domain name, now it is „alles10euro.de“ but name of domain must be „www.alles10euro.de“

When I change name of domain, the error „Migration failed“ has appeared

2

Can you help me?

3

Please contact our sales team: https://en.shopware.com/contacts

4

Another question:

When I try to add shop, the error “Domain could not be verified” has appeared.

What this error mean?

P. S.

The file sw-domain-hash.html was created and contain the correct text.

Thanks