help!!!!!!!

[Ringostr1k3]

Today, I turned on my beautiful 40-GB PlayStation 3 to get a good game of rock band The Beatles, after a hard day of school. Unfortunately I get an error: 8001050F, which does not allow me to play any game! Oh boy, I wonder if you could help me! Perhaps it is repetitive but I wanted to ask if the song that comes out March 4, ALL YOU NEED IS LOVE, will be sold only for that date, or if you can buy it a few days later. Please help me guys!
THANKS TO ALL!

[iwabomike]

My guess is this:
http://www.rockband.com/forums/showthread.php?t=184483