On the calendar? What's the nature of the error?
If your error is during addpost... I did ran into some unexpected difficulties with Gamejag's prior script, where he had
$ETime = mktime ($hour_convert,$min,0,0,0,0);
which I replaced with
$ETime = mktime ($hour_convert,$min,0,0,0,$year);
because the prior mktime was giving me -1 for some reason. I believe that older versions of PHP handle the mktime variables slightly differently. You may want to try to change it back to 0,0,0); to see if that helps.
Regards,
Max
