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 ('99368389acb21077c95715fe64f1fc3f','0','18.222.231.212','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715700963','formmail.php?userid=267&sid=62b6b937ac0c6bf67617612e0356f785','0','0','')
mysql error: Duplicate entry '99368389acb21077c95715fe64f1fc3f' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 14.05.2024 @ 17:36
Script: /formmail.php?userid=267&sid=62b6b937ac0c6bf67617612e0356f785
Referer: