After migration Jira from server to cloud get this error 'User does not exist' ?

Question

tried to migrate from JIRA server to on demand

I copied xml backup file and data to webdav.

After import I got white page with this msg

Sorry, we had some technical problems during your last operation.

When I open Request assistance find this error

com.atlassian.crowd.exception.runtime.UserNotFoundException: User <admin> does not exist

Paulo Junior · Answer

In this case, I would suggest you to open a support ticket at support.atlassian.com