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 ('b8cebd54215c1008ab24f7f82667dd76','0','3.149.242.253','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715580002','board.php?boardid=685&sid=2a92c2c37c2f62d70782053acaf4ab12','0','0','')
mysql error: Duplicate entry 'b8cebd54215c1008ab24f7f82667dd76' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 13.05.2024 @ 08:00
Script: /board.php?boardid=685&sid=2a92c2c37c2f62d70782053acaf4ab12
Referer: http://wehrbauten.de/board.php?boardid=685&sid=2a92c2c37c2f62d70782053acaf4ab12