During a clean up of my plugins inside of WordPress i deactivated the: smart archives reloaded plugin.
Next up: a fatal error when i refreshed the page.
Fatal error: Class 'SAR_Generator' not found in wp-content/themes/waldorf/functions.php on line 469
Plugin: Smart archives reloaded
So i couldn't access the site and also the wp-admin / control panel anymore. Before the clean up i downloaded the whole folder for a backup.
- i replaced this folder with the backupped version: no change
- replaced functions.php / wp-admin & wp-includes: no change
- checked my wordpress version: 3.5.1 downloaded a fresh wordpress 3.5.1 folder and replaced those wp-admin & wp-includes with the ones on the ftp: no change.
- followed this "Tutorial"
- Renamed plugin folder & add comments on error section in functions.php
But all of those solutions didn't solve the problem