Hi, I've just installed a joomla template and when I see my page a php warning pops up.

Warning: Invalid argument supplied for foreach() in C:XAMPPxampphtdocsexampletemplatesrt_utils.php on line 52

The 52 line is:

52: foreach($mainframe->_head['custom'] as $row) {
53: if (strpos($row,'mootools' ) > 0 && strpos($row,'.js' ) > 0) {
54: return true;
55: }

What can I do or change?.

Thnxs you very much for any help.