Internal AJAX call error

[KangJL]

Most likely due to this

Ensuring only web browsers can access your website

InfinityFree is a website hosting service. That means that the hosting accounts we provided are intended for hosting websites. Websites contain pages that are accessed through web browsers. InfinityFree is not intended to be used for file sharing, API hosting, database hosting or background tasks/tools. To help enforce this, free hosting enforces a security system that makes sure that anyone trying to access your website is using a normal web browser. This is done by checking whether the web br…

or this

WordPress Site Health known issues

The Site Health check from the WordPress Health Check & Troubleshooting plugin are a common way to check the configuration of your WordPress site and point out configuration issues. Some of these tips are useful and not all of them can be applied easily on InfinityFree. This article covers some commonly seen issues with the Site Health checks. The optional module, imagick, is not installed, or has been disabled imagick is a PHP extension that can be used to edit images in PHP applications. It m…

Why not check the plugin developer?