form on the right or left

when using any form on the left or right of an error like this
Notice: Undefined variable: gkRightRight in / home / demecac / public_html / templates / gk_sporter / layouts / blocks / right.php on line 47
style = width:>
Please tell me what should I do to clear this message

Hi

Please simply disable showing errors in global settings for server in joomla panel. I think it's because the width for right column is not set in template settings, so You can check that too.