Error message

• Notice: Undefined index: und in eval() (line 3 of /home/amctechn/public_html/modules/php/php.module(80) : eval()'d code).
• Notice: Undefined property: stdClass::$field_link_target_3 in eval() (line 7 of /home/amctechn/public_html/modules/php/php.module(80) : eval()'d code).