Yeah unfortunately none of these worked.
First: any of the instructions for how to disable that involve accessing the ACP, I can't use. The board is literally utterly inaccessible because of this one broken Auto Backup extension.
Second: the only instructions, the last ones that provide a php file to disable via uploading to the root by FTP, I copied it exactly, saved it as ext_disable.php, uploaded to the same root as the phpBB config.php file. Then I navigated my browser directly to that file...and still get blocked by the "catchable error" message. You can see it here
. And if I try to navigate directly to the ext_disable.php file, I get this
There was some mention of being able to go and manually fix some data in one or more of the tables directly via phpMyAdmin, but no details actually given about what those steps were that were successful for that user.
I'm completely and totally blocked out of the board and any access, cannot even view it. This plugin has somehow rewritten a few key places that now I can't simply delete or overwrite. I can't even simply restore from a backup, because all the backups apparently require that I first access the ACP and restore from there.