The issue with logging in to the online play from our software was resolved today. You will find ProGolf version 8.004 was released today to address this issue. The issue arose from our move from http protocol to https (more secure) protocol. The impact of this change was not immediate so it was hard to identify that as the root cause of the problem.
You should now be able to play again at P3 Live without issue. Remember that we have Daily Competitions and tournaments scheduled for your entertainment pleasure so there is always something ready for you to play. We have developed a generic handicap system to help keep the playing feel pretty level (of course, you have to establish your handicap first).