error 1054

Dear Solidres,

After I write the check in and out ; and i click the "Search" buttom I get this massage:



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1054 Unknown column 'state' in 'where clause' SQL=SELECT id, label FROM `ykn_sr_rooms` WHERE room_type_id = '1' AND id NOT IN (SELECT room_id FROM `ykn_sr_limit_booking_details` WHERE limit_booking_id IN (SELECT id FROM `ykn_sr_limit_bookings` WHERE ( ('2014-07-07' <= start_date AND '2014-07-09' > start_date ) OR ('2014-07-07' >= start_date AND '2014-07-09' <= end_date ) OR ('2014-07-07' < end_date AND '2014-07-09' >= end_date ) ) AND state = 1 ))

Thank for your answer.