Hi @zenzen123,
First of all, sorry to hear that you faced an issue with Essential Addons for Elementor.
Anyways, regarding the 500 error you have faced, it could be due to lots of reasons. One of the common reasons why it happens if you have a low PHP Memory Limit on your WordPress website. You can check out this doc from Elementor for more info on this.
You can try increasing your PHP Memory Limit by following this guideline and check back.
If that doesn’t work, you can share your system info with us from WordPress Dashboard -> Elementor -> System Info
Anyways, Essential Addons is currently being used by over 1 million users. So, blaming our plugin fully for this and leaving a 1* review without asking in our support or without giving us a proper chance to resolve your issue is a bit unfair, to be honest.
But regardless, I am looking forward to hearing back from you soon. If you need help you can contact us here: support[at]wpdeveloper[dot]net
We will gladly help you out, Thank you!