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 ('7f8937aeac2923b939af60d939d17ea3','0','3.147.44.121','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715575733','newthread.php?boardid=223&sid=3cfb5b70d44048fb5ce4073d2fd65b9d','0','0','')
mysql error: Duplicate entry '7f8937aeac2923b939af60d939d17ea3' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 13.05.2024 @ 06:48
Script: /newthread.php?boardid=223&sid=3cfb5b70d44048fb5ce4073d2fd65b9d
Referer: http://wehrbauten.de/newthread.php?boardid=223&sid=3cfb5b70d44048fb5ce4073d2fd65b9d