Giving us a true url to your site can help immensely here when seeking assistance. If you did not properly run the 4.82 upgrade then I would think this is your issue since that upgrade is missing
Yes your Photopost was not running a table prefix and neither is your forum so this is what caused your conflict since table names where crossing as far as search but you resolved this.
I think I found a url for your site but it does not exist where your telling us it exists. Does not seem there is an album directory on your server any longer.