Unable to load assets with a Wordpress on Ubuntu 14.04

I am using a plugin called Qards by Designmodo. On a GoDaddy server, it works perfectly, but when I place it on a Ubuntu 14.04 Wordpress it showed 500 internal server errors in the browser console. I believe it is unable to locate the assets. This includes jQuery.

Here is a gif of the effect on the wp-admin and looking into the browser console.

What steps should I take to solve this problem?

I am not well versed in backend code or working with a server. However, I am very comfortable with the console and eager to learn.


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A 500 error indicates a server-side problem and would not involve jQuery (as this code is run in the browser). When you receive a 500 error in any web application the first step is to review your web server’s error log. Assuming that you are running WordPress on Apache (our one-click WordPress image is based on Apache) you can find this file at /var/log/apache2/error.log

The error message displayed in that file will likely provide more details on the error that was encountered and what script and line number it occurred at.