I was checking the file last night and was able to make some progress, I think.

In comparing the file in the plugin with the modifications you suggested, and this file https://github.com/mc12345678/Dynami...ce_updater.php which already contains the modifications, I found an extra line at the bottom of the code on the one on the plugin. In removing that extra line the product info page now downloads. However the ajax loader image stays on a loop. You can see the behavior on the test page here http://www.byvalenti.com/bvostoretem...&products_id=4

No error log files are generated with this behavior.

I hope this info helps you a bit =)

Thank you for looking into it.