I have a few add-ons, around 8.
Around 5 different themes
I also have around 6 language packs installed.
I am using the TMS, and now whenever i try save something i get an error. If i try to delete a tms setting i get an error.. I can not make any template changes unless I turn off TMS. I tried uninstalling other modifications, and I get an error too whilst the site is rebuilding cache. The errors vary, but this is what i got last time:
Zend_Db_Statement_Mysqli_Exception: Mysqli statement execute error : Duplicate entry '21-form_date_picker.css' for key 'style_id_title' - library/Zend/Db/Statement/Mysqli.php:214