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 ('2b67a9f1cc3f52d220e8943246be1600','0','3.22.181.209','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715501896','formmail.php?threadid=2145&sid=68a3bc924e237d6ece1602ab42a6428e','0','0','')
mysql error: Duplicate entry '2b67a9f1cc3f52d220e8943246be1600' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 12.05.2024 @ 10:18
Script: /formmail.php?threadid=2145&sid=68a3bc924e237d6ece1602ab42a6428e
Referer: