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 ('d9dd79ef236857ff229487d906355e93','0','18.222.95.7','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715475466','jgs_portal.php?sid=3116c4ca76c3b8055c01eda8c13452cb','0','0','')
mysql error: Duplicate entry 'd9dd79ef236857ff229487d906355e93' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 12.05.2024 @ 02:57
Script: /jgs_portal.php?sid=3116c4ca76c3b8055c01eda8c13452cb
Referer: http://wehrbauten.de/jgs_portal.php?sid=3116c4ca76c3b8055c01eda8c13452cb