Missed the first two days 'play' and tried to get in today but i'm stuck because I couldn't get in with my old...

Missed the first two days 'play' and tried to get in today but i'm stuck because I couldn't get in with my old version (10.2 - too old) and can't get in with the update (13.2) - it tells me the server is too old. How can I get the correct version?