I had a functional Drupal 6.25 site. I tried to upgrade to version 7.12. When I did this (I think it happened when I ran update.php), my database became messed up somehow. When I started clicking on my tabs in my new 7.12 site, I got lots of database errors. I didn't want to deal with these, so I decided to revert to my backup site (I just replaced my entire new drupal folder with my backup drupal folder). However, now with 6.25 I cannot access any of the pages on my site - all I get are database errors (examples below).
I am no longer interested in upgrading to version 7.x, I just want my old working site back. I think (hope!) that I have a backup of my old database. In the same folder as my cgi-bin folder (which in turn holds my drupal folder), I have a folder called db_private which has been updated once a day for the last few days. I think that this is my old db info.
If you have any suggestions as to how to get my old site back, I'd really appreciate it!
Here is what happens when I try to go to my homepage:
(I've replaced my actual webpage directory path with PAGENAME for privacy)
Warning: Unknown column 'headers' in 'field list' query: SELECT data, created, headers, expire, serialized FROM cache WHERE cid = 'variables' in /PAGENAME/cgi-bin/drupal/includes/database.mysqli.inc on line 134
...etc...