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 ('1b2354d177afeb6f6dbde380c34046f9','0','3.128.168.87','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715773647','board.php?boardid=328&page=1&daysprune=1000&sortfield=lastposttime&sortorder=ASC&sid=c2afd2868b9b79235e23e343c9d0a296','0','0','')
mysql error: Duplicate entry '1b2354d177afeb6f6dbde380c34046f9' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 15.05.2024 @ 13:47
Script: /board.php?boardid=328&page=1&daysprune=1000&sortfield=lastposttime&sortorder=ASC&sid=c2afd2868b9b79235e23e343c9d0a296
Referer: http://wehrbauten.de/board.php?boardid=328&page=1&daysprune=1000&sortfield=lastposttime&sortorder=ASC&sid=c2afd2868b9b79235e23e343c9d0a296