[Scandal]

Originally Posted by m_k

Having the same problem mentioned a couple pages back...

It comes up whenever I try to RSVP for an event.

vBulletin Message: The response you gave to this event was not in the list of valid responses. Please contact the forum administrator if you believe you have received this message in error.

also have the following error at the top of the page: Warning: array_walk() [function.array-walk]: Unable to call array_lower() - function does not exist in [path]/calendar.php(1222) : eval()'d code on line 482

Well, to fix this problem:
1. open the calendar.php
2. find:

PHP Code:

    ($hook = vBulletinHook::fetch_hook('calendar_displaymonth_complete')) ? eval($hook) : false;

    eval('$HTML = "' . fetch_template('calendar_monthly') . '";');
    eval('print_output("' . fetch_template('CALENDAR') . '");');

} 


add below

PHP Code:

// function for RSVP
 function array_lower(&$item, $key)
 {
            $item = strtolower($item);
 } 


And you are done!

-petros