I have this too, but when I want to download it again, the start page of the installation software reminds me of the Play Money version, so I decided to cancel it. On the PokerStars Support
Twitter page, they write to other questions that they are working on some problem, so I'll wait a bit.
PS live support gave this
Hey Player!
First, sorry for the inconvenience caused by this.
So, this indicates that there is an issue with your firewall, here is how to resolve it:
Restart your computer and power off/on any network equipment you have connected (i.e., modem, router, access points).
Once your computer has restarted, verify that your internet connection is working; then, reopen the program.If this fails, then...Configure your Firewall.
It will be something like this process, although the location may be different in each Firewall:Open the firewall control panel (often, you double-click the firewall icon near the Windows system clock or locate it under the Start Menu).
Choose the 'Programs' tab (or otherwise locate the program list).
You will find these items in the program list:
PokerStars.exe
PokerStarsUpdate.exe
PokerStarsCommunicate.exe
PokerstarsBr.exe
PokerStarsComp.exe (.NET only)
Tracer.exe
xc.exe
xcw.exe
xcwxp.exe
For each of these, changing 'Block All' to 'Permit All' (or to the least restrictive permissions) should be sufficient to permit you to access the site.
As mentioned, the instructions may vary, and for further help, you should contact the vendor of your firewall software.
I am sorry for the inconvenience.
If you have any question, please do not hesitate to contact us again.