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They upgraded MySQL version and enabled FastCGI.
But I think the problem is with MySQL. When they upgrading something went wrong and I cannot access some tables. modules table is one of them. Full list is this:
_posts, _group_permission, _imgset_tplset_link, _modules, _tplfile, _xoopscomments
When I look database with phpmyadmin I see these tables as "in use"
So I can only see structure of table and cannot see or alter content of tables.