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 ('ef33f1369cfe2e1c181edbad59991c5b','0','3.145.83.150','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715048060','board.php?boardid=69&sid=77bc4fe1c2e90fdfef98bfd515b548af','0','0','')
mysql error: Duplicate entry 'ef33f1369cfe2e1c181edbad59991c5b' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 07.05.2024 @ 04:14
Script: /board.php?boardid=69&sid=77bc4fe1c2e90fdfef98bfd515b548af
Referer: http://wehrbauten.de/board.php?boardid=69&sid=77bc4fe1c2e90fdfef98bfd515b548af