When I try to open an article. No other info populates the article page, just the error.
"0 Call to a member function get() on array"

I did go back into user profile features and took the Joomla Editor Button" back out, and it worked again.

The error is probably being generated from one of the editor-xtd plugins you have installed. If you would like to troubleshoot this, then do the following:

1. Go to Extensions -> Manage -> Manage and click on the Search Tools button.
2. Set Select Type to Plugin, and Element to editors-xtd
3. Select and disable all the plugins that do not have Joomla! Project as the Author.
4. In a new browser tab, add the Joomla button back to the editor, and load the editor.
5. Go back to Extensions -> Manage -> Manage and enable each of the plugins you disabled in turn, loading the editor in between until you see the error again, then you know which plugin is causing it.

This would be useful for me to know, so I can attempt to resolve this issue. Otherwise, keep the Joomla button out of the toolbar, and carry on without it as before.

2.8 is an awesome update! Just what so many users have been waiting for. Thanks to the entire team.

Thank you! There is only one of me, which is why it took so long!!

I did find the issue. It was Regular Labs - Content Templater. I will notify them of the issue.

No need, I will look into it. The Joomla button may need some tweaks. Look out for the next update soon.