I tried to find a plugin that makes image embed links to be placed on other sites, forums. I found one - image markup generator. But it not officially supported. I tryed activate, but this plugin not working. There are way to decide this problem or another plugin exist? Somebody knows?

Yes, sadly many third party plugins are not actively maintained. All known plugins are listed on our extensions section.

Extension section not working.

Yes, we sadly had some trouble with our site that should be solved now.

I'm the original plugin creator, best to raise a ticket here if you're still having trouble:

https://github.com/wongm/zenphoto-image-markup-generator

I'm still using the plugin on my personal websites, and it's working fine.