Just downloaded T4 (t4_pkg_1.0.0_preview.zip)
It wont install, it uploads but goes into a blank page. No install occurs.
Chose T3 category since I dont see T4 as an option in the blog.
same issue here. I get this message
0 - An error has occurred. Call to undefined method Joomla\Registry\Registry::remove()
Return to Control Panel
devsmi
Hi,
We re-export the package, pls download and install again to your site.
Regards
Still same issue, but now I am getting a blank front end and back end. I will try in a fresh installation. You have my login admin credential if you need to look at the site.