[SOLVED] Errors occured during the installation on win 8.1 x64

I’ve recently found Manager and tried to install it on my PC running Windows 8.1 x64.
When trying to install Manager, I encountered these errors:
“Called RunScript when not marked in progress”
Then, when I press OK, this shows up:
“Called InstallFinilize when no install in progress”.
I really like to use this software, but I’m not able to install it!
Any help would be appreciated.

I tried the second solution in the link below and it just worked fine.
here is the link: