Resolved by my web host:

I found that your application was not loading because it was trying to use a functionality of a module not loaded by default in the PHP 7.4 stack:

[11-May-2020 10:59:03 America/Chicago] PHP Fatal error: Uncaught Error: Call to undefined function mb_internal_encoding() in /public_html/core/init.php:21

I loaded the module but the application still rendered the same error page but it no longer produced any error logs.

I changed the PHP version to PHP 7.3 and the website started loading. It seems there is a part of your application incompatible with PHP 7.4. It is probably an extension, plugin, or a custom theme you might be using.

At this point I don't recommend changing the PHP version to 7.4, you should keep it at 7.3.

I am new to Abantecart, and am a little troubled by what I discovered.

Every Extension that I have installed so far, paid or free, has set all of the folders AND files permissions to 777.

That is very frightening from a security standpoint as the .php & .tpl files are openly writable, is it not?

Hi, thank you. That allowed me to upload the .webp image, however, Abantecart will not display it in Admin or Frontend.

How can I use webp images for product images with Abantecart? I get an error message, "Filetype not allowed".

Thanks.

I need to produce Packing Slips. I thought I could figure out how to convert, or duplicate the Invoice to a Packing Slip, but can't figure it out.

Thanks.