pixodaros:
The version is 1.5.8a (the latest version linked from the ZenCart homepage).
At my first look the logs at /home/mysite/public_html/zencart-1.5.8a-test/logs say something like this:
PHP Fatal error: Uncaught Error: Class 'ZipArchive' not found in /home/mysite/public_html/zencart-1.5.8a-test/zc_install/ajaxLoadMainSql.php:57
Stack trace:
#0 {main}
thrown in /home/mysite/public_html/zencart-1.5.8a-test/zc_install/ajaxLoadMainSql.php on line 57
>
> (There are also log files for the times I entered the wrong password, but those were easy to solve)
> **pixodaros:**
>
> Yes, I used the "copy the Zip file onto the web server with File Manager then extract it, load the URL, and install through the web interface" method because that is what the Zen Cart installation instructions recommend.
>
>
> Did you mean results like <https://stackoverflow.com/questions/48255921/php-fatal-error-uncaught-error-class-ziparchive-not-found-in> Knowing whether the problem is with Zen Cart or with the server's configuration would help.
>
>
> The web server seems to have PHP 8.0 installed but 7.4 is active. Because this is a working server not a pure test environment, I would want to ask the server provider why they set it up like that so I don't break something else. They support 25 databases so having both Wordpress and a test install of Zen cart should not be a problem but we live in Romulus' dump not Plato's republic.
The error called out above in this post is attempting to access a class that is only used in core code this one time.
As to the issue being specifically something wrong with the overall software, it's not specifically an issue with overall zen cart otherwise there would be far more posts at this point about it. For a little background though, the primary developers have determined that installation of the demo data is "best" through this unzip process, even though that software or class is only managed this one time.
A solution can be offered if your interested in continuing down a path of not getting the host to support. Basically it would be to offer direction of how to unzip the necessary files and as part of the code to skip the unzip process and search for the necessary upon which to take the next action.
As to impact on other software, hopefully you are seeking upgrading that software to start using a current version of php. Php 7.4 is already outdated, unfortunately.
ZC Installation/Maintenance Support <- Site
Contribution for contributions welcome...