How to unshow/ignore a prompt from web server?

Ok I got a website that allows people to post events, but after my webhost changed to a new server I get the prompt below

Warning: chmod() has been disabled for security reasons in [path]/new_event.php on line 307

Is there any way we can ignore the above string so that it does not show to users? I've tried changing the permissions but it doesnt work. The event still gets posted but the above string shows.

TIA

 

Put symbol "@" before chmod() function like this: @chmod(...)

 

Thanks alot!