Mensaje de error

• Notice: Trying to get property of non-object en eval() (línea 2 de /var/www/career/logistica/sites/all/modules/views_php/plugins/views/views_php_handler_filter.inc(90) : eval()'d code).
• Notice: Trying to get property of non-object en eval() (línea 2 de /var/www/career/logistica/sites/all/modules/views_php/plugins/views/views_php_handler_filter.inc(90) : eval()'d code).
• Notice: Trying to get property of non-object en eval() (línea 2 de /var/www/career/logistica/sites/all/modules/views_php/plugins/views/views_php_handler_filter.inc(90) : eval()'d code).
• Notice: Trying to get property of non-object en eval() (línea 2 de /var/www/career/logistica/sites/all/modules/views_php/plugins/views/views_php_handler_filter.inc(90) : eval()'d code).