SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: UPDATE bb1_guthaben_bank SET akt_jahr='2026', crashtag='138', boersencrash='0',boersencrashdate = '', boersencrashaktienwert='', boersencrashprozent='',boersencrashaktienwertneu='' WHERE bankid='1'
mysql error: Incorrect integer value: '' for column `web467_1`.`bb1_guthaben_bank`.`boersencrashaktienwert` at row 1
mysql error number: 1366
mysql version: 10.5.29-MariaDB-0+deb11u1
php version: 5.6.40-0+deb8u12
Date: 08.03.2026 @ 00:38
Script: /register.php?sid=7015f778f23e6feb010c0a083292fa53
Referer: