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 ('c8593587f37e05e975ab962c4c9d6f4f','0','18.119.172.146','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714922246','board.php?boardid=97&sid=8ca5dcf2eb775c225d4606cba9e36703','0','0','')
mysql error: Duplicate entry 'c8593587f37e05e975ab962c4c9d6f4f' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 05.05.2024 @ 17:17
Script: /board.php?boardid=97&sid=8ca5dcf2eb775c225d4606cba9e36703
Referer: