Error message

Notice: Undefined index: in_stock in views_handler_filter->store_exposed_input() (line 1395 of /home/sanmarcofurnitur/public_html/sites/all/modules/contrib/views/handlers/views_handler_filter.inc).
Chester armchair
In stock
$750.00
Premier armchairs
In stock
$950.00
Cardinal armchair
In stock
$800.00
Status armchair
In stock
$950.00
Favorit armchair
In stock
$1,350.00