Yes i have but the answer was , we have installed piwigo and it works fine. But my installation still not work.

For example adding a picture you get no list of albums to choose.

Batchmanager nothing happends

I suspect some datebase issues or authoroties to folders?

What to check ?

Well s/he said "without loosing all pictures and info in database" so..

Not even a list of albums sounds like a database problem, unless you had only physical albums that the hoster didn't move or the file and directory permissions there don't allow the web server to read them. But then again, you'd probably not even be able to login to get to the batch manager if there was a general database problem.. Anyway, check if the content of local/config/database.inc.php matches reality, specifically the configured $prefixeTable in all cases. Check with your database administration tool (phpMyAdmin or whatever it might be your hoster provides) if you can access the database and the structure matches and has content. Specifically check the piwigo_categories table whether it has the expected content.

If nothing helps, restore all database tables from the last backup before the move. You do have backups, don't you?

The hosting provider's answer "we have installed piwigo and it works fine" sounds like they did a fresh install somewhere and didn't even investigate your particular problem or a possible issue in their migration.