Error while trying to restore WordPress website

I am trying to retrieve an old WordPress site to a new domain using the WordPress Duplicator Plugin. I am getting these error messages

SQL ERROR: Access denied; you need (at least one of) the SUPER privilege(s) for this operation

[PHP ERR][ISSUE] MSG:Return type of IgnorantRecursiveDirectoryIterator::getChildren() should either be compatible with RecursiveDirectoryIterator::getChildren(): RecursiveDirectoryIterator, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice

What does that mean and how can I grant super privileges to an account user and or a database user?