Can't install forum

Is there any error? What does it say?

Nothing, just doesn't go further, see attachment. I tried with Safari and Chrome too, but result is the same.

That is weird :) Could you show screenshot not of the URL but the install result page.

Also please turn on debug mode and error reporting to maximum in global Joomla config. Try again and see if you have any error.

Install result page is blank, only on URL stays what you can see in attachment. That's all. In debug mode I recive error:

Fatal error: Call to a member function register() on a non-object in C:\xampp\htdocs\muzikanti\tmp\install_50f5861621540\pack073a51\install.pack.php on line 596

What pack version are you кенштп to install? Note that packs 8.* will not install on Cobalt 7. Only packs 7.*

New installation of pack 8, new installation of Joomla 3.02, Yootheme Drive template.

I was suspicious because you post in Cobalt 7 forum not in Cobalt 8. We are looking into this problem.

It was my mistake to write to Cobalt 7 forum, because that was my first Cobalt 8 installation.

We cannot reproduce this error. It works on all instances we have. We will add some changes and release new pack later. Let's see if it is going to fix error.

Release today?

I will update pack tomorrow with Cobalt 8. Because it may require latest Cobalt to work properly.