halo 5 wont run or play

have not been able to play halo 5 guardians at all for last hour now on my xbox one. i bought the xbox one halo 5 specials editions xbox. so the game came with the xbox. its already installed. however ive tried turning the xbox off and on. tried quitting the game. nothing works. when you start the game it simply does not start and you get an automated message from xbox sayin ‘halo5 has taken to long to start’ op1 cancel or opt 2 get help.
please 343 fix this