While testing I cant see the jquery correctly working on Firefox nor Chrome

[Ghaamae]

Hi! Im just wondering why I can't see the popdown effect while testing my website on Firefox and Chrome? I can only see it on IE. I've tried many things changing the order of the scripts and re checking they are correctly linked but I get the same result: the window shows up but it loops on the loading stage and doesn't show the content.

I hope this is not a silly issue.
Thank you very much for your time.

CPE. María Inés Calderón Zetter.

[kamaroly]

Hello,pleass do element inspect and share the console screenshot, the backend maybe returning internal server error (500). Or you can also try to visit the link first without Popdown and see if it shows up.