Hi!
I’ve managed to solve it with the ftp. I think you might have updated from an older version to 4.0 or a database inconsistency might have happened.
Anyways, this was a partially known problem and you can always use this guide for safely updating the plugin: http://wpdreams.gitbooks.io/ajax-search-pro-documentation/content/update_notes.html
The cache options were missing for some reason. I’m making a few changes for the upcoming version, so these problems should never appear again 😉
Best,Ernest Marcinko
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