Zotero not running

I cannot get my Zotero to open on prtable firefox anymore (it worked initially and so i ejected the jump drive and reloaded, however that made no difference). I can force quit normal firefox and then start the portable, howver it loads "with success" and then the normal firefox opens and I recieve a notification that "there was an error starting Zotero". I have tried all of the "suggestions" from the support section of the site but it has made no difference.

I also deleted the zotero.sqlit file (however it does not stay deleted, everytime I re-open the program it is back). So it works fine for the amount of time that the file is "deleted" which is a matter of seconds if at all.
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