[thincom2000]

Originally Posted by axix20xx

I Upload all ftp file ...
but it didnt respond again ...
then again uninstall it & again go to install process and this database error again :

I just installed a test, uninstalled it, and reinstalled it with absolutely no problems. You are either doing something out of the ordinary in the process, or this is caused by another error that you haven't already reported.

You will have to be very specific about the steps you took to "uninstall" the product, including any error messages along the way, because the normal way is working fine for me. I have a feeling you just keep deleting all the vault_ tables from the database manually, expecting that to work, rather than running the Uninstall option in vBulletin's Product Manager.

Also, you can easily just skip steps in the install process by commenting the section out in the files. Modify vault/install/mysql-alter.php to remove the usergroup/vault_permissions part if you're getting an already-exists error.