Cannot activate

And then I went to the plugins page and tried from there and it’s going.

So it’s working now?

Yes, thanks. I was hoping for a way to sign people up for events through WordPress, without sending them to CC, but it looks like CC doesn’t allow for that.

getting this as well. Deleted old versions via ftp. Install via “Add New” .

Downloads fine, but the gets the no valid header upon activation

I updated the plugin on my site through the admin portal this morning and my whole site crashed. Can anyone tell me why this might have happened and what I can do to repair the issue? I don’t even have access to my WP admin portal.

https://www.engagingschools.org