SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('223945524ade92f3e2822bc3fba652d8','0','18.189.14.219','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714752525','register.php?sid=6e6caaf462d32872f273ac06da3aaf17','0','0','')
mysql error: Duplicate entry '223945524ade92f3e2822bc3fba652d8' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 03.05.2024 @ 18:08
Script: /register.php?sid=6e6caaf462d32872f273ac06da3aaf17
Referer: