Reuploading .txt to server

I have a backup .txt file of my database for my forums called localhost.sql. Seeing that vBulletin 3.0.4 came out today I decided to delete my current forums because I didn’t like the current mod I did and wanted to start fresh. The .txt was saved before I did any modifications so it doesn’t have any of the modded files on it. When I reinstalled the new forums which are now 3.0.4, I decided to upload the backup database so all of my users and info would be back on the new forums. I tried a few times in phpmyadmin, but no luck. I kept getting the same error which was

Fatal error: Maximum execution time of 300 seconds exceeded in /usr/local/cpanel/base/3rdparty/phpMyAdmin/libraries/read_dump.lib.php on line 77

I’ve tried re creating the database which was remade when I reinstalled the newest version of the forum. Then once I have the remade database, I went to SQL in myphpadmin and went to “Location of the textfile:” and uploaded it and still got the same error.

I also tried not having the DB made and tried to let the .txt file make it. I still got the infamous error :pir:

Does anyone have any suggestions or help?

Thanks.