I just did a little clicking around on your site,  and here's what I found -  wolfs, prints-16/20 and other when you click on them  show this wrong URL
https://mail.theresamatherfantasyshop.com/dir/index.php?rt=product/category&path=87

I did not search them all,  just saw enough to see you have a error.  Start by getting all the links to go to the correct url

Thank you for the heads up.   
But could you please provide guidance:
1. is this change ONLY for establishing new connections  or
2. if Admin is already using the PayPal Commerce,  eg since AbanteCart 1.3.3  which uses PayPal Commerce v. 1.0.0  does it need to be installed there also

Is the quick fix to be installed there?  I see the version  in quick fix is changing from 1.0.2  to 1.0.3,   but neither AbanteCart 1.3.3 or 1.3.4  are using v 1.0.2   --   1.3.3 is  PP commerce 1.0.0  and 1.3.4  is 1.0.1

thanks in advance for more clarity.

Please check to see if jpeg is set up in the allowed file extensions


https://abantecart.atlassian.net/wiki/spaces/AD/pages/24281122/Add+new+resource+type

FYI ,  an easy way to get the file and how to install it for 1.3.4 is on our Patch files link
https://why2central.net/patch/abantecart-v1-3-4-default-weight-path-file/

Regards,
The WHY2 support team

Perhaps you have adjusted something,  but I just went to your site  and I see the continue button,   see my screen shot of a few moments ago.

Updating -  AbanteCart v 1.3.4  requires a min of PHP 8.0

As to updating your PHP version here is my take after 40+ years in computers,  the number one reason is security, number two is performance.

Take a peek at this versions supported PHP info
https://www.php.net/supported-versions.php

Since we provide managed services as well as hosting to our clients we firmly support using current support OS and PHP versions again based on security and performance.

Unfortunately for most things in computer world as well as other areas of life - change is the only absolute.  But it does keep things interesting. 

Most hosting providers now have multi PHP versions.   And they can be applied to different domains.  So if you have one domain where you can install AbanteCart 1.3.4  -  and select PHP 8.0 at the minimum that would leave your other sites running different PHP versions,    Just a thought.

 

See here for some info:

https://www.abantecart.com/
https://managed.abantecart.com/custom-ecommerce.html

Hey Nuno,
I made the post here as this is a bit of a different issue -  we adjusted the core coding for your site for the Moloni invoicing  to work correctly on the product page etc.   But thought Devs should be aware of this for all admins using incl tax in the pricing.  The have moved the checkout issue to github for a solution and that will be a good thing.

You are still wanting to "back into" a retail price by adjusting the incl tax to be rounded.  The issue then becomes how many decimals for the retail price,  how to handle the rounding for display on the product page,   and how to work with the number of decimals places the Invoicing company (Moloni)  uses in their reconstruct of the line items.  Moloni  uses 6 decimals,  and refigures the line items then rounds.   You can see how there are several places that are concerned in the decisions. 

Cheers all, welcome to the confusion of decimals and rounding
Lee