I would perhaps suggest you fix your sql problems first - see your other post.
Don't forget that the whole ispconfig interface and operation relies on a good working sql backend - in simple terms updates are entered as SQL records then the cron job queries and applies those records as changes to the system.
You may find, if you look at your job queue, you have a lot of outstanding jobs. You may also find if you still have SQL access issues the job queue cannot be processed.
Once you've fixed that, perhaps a "resync" of websites from the tools menu, you may find operation of a website a lot better.