Hello all, I have the next problem, installing Joomla-SMF the forum 2.0RC1

went 100% good, I have now only each time error:

"Notice: Undefined index: months in x:\ \ xxx \ \ xxx \ \ xxxx \ \ xxx \ \ Sources \ \ Subs.php online 878"

How can I solve these error? Gladly your recommendation in these!

Greetings, The-Peet