Error message

• Notice: Undefined index: en in eval() (line 10 of /var/www/html/NewAAUJ/sites/all/modules/views_php/plugins/views/views_php_handler_field.inc(226) : eval()'d code).
• Notice: Undefined index: en in eval() (line 10 of /var/www/html/NewAAUJ/sites/all/modules/views_php/plugins/views/views_php_handler_field.inc(226) : eval()'d code).
• Warning: date_timezone_set() expects parameter 1 to be DateTime, boolean given in format_date() (line 2127 of /var/www/html/NewAAUJ/includes/common.inc).
• Warning: date_format() expects parameter 1 to be DateTimeInterface, boolean given in format_date() (line 2137 of /var/www/html/NewAAUJ/includes/common.inc).