FreePBX Framework install/update problem

FreePBX Base Version: 2.4.0alpha0
FreePBX Framework Version:
FreePBX Core Version:

I have installed 2.4 Upgrade Tool

Now I can’t install FreePBX framework.
When I try to install it, after pressing “confirm” button, I see in orange window text “Please wait while module actions are performed”. After that, no any error or other messages in orange window.