warning/error on speakers pages custom fields

I get some kind of warning on one of my speakers pages (on custom fields):

the first one:Warning: array_map() [function.array-map]: Argument #2 should be an array in /home/kalemkultur.com/domains/itef.kalemkultur.com/httpdocs/wp-content/themes/Events/template.speaker.php on line 104

second one: Warning: implode() [function.implode]: Invalid arguments passed in /home/kalemkultur.com/domains/itef.kalemkultur.com/httpdocs/wp-content/themes/Events/template.speaker.php on line 106

I created this speaker page normally but all of a sudden this error codes appeared. as i do not know any coding i coudnt understand the problem plus i do not have any progams to tell me the exact lines....

here is the referred page: http://itef.kalemkultur.com/?page_id=2045&lang=tr

Hi,

Please compare the Events/template.speaker.php file with the original one from theme package and let me know if the files are exactly the same.