SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6 pl 2): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('20dee203906b6f9584f0e388706da15a','0','3.145.60.166','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)','1713534469','forgotpw.php?sid=0473039f9ddd37e3570d260e2b1abfcb','0','0','')
mysql error: Duplicate entry '20dee203906b6f9584f0e388706da15a' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.44
php version: 5.2.17
Date: 19.04.2024 @ 15:47
Script: /forgotpw.php?sid=0473039f9ddd37e3570d260e2b1abfcb
Referer: http://your-wbb.de/forgotpw.php?sid=0473039f9ddd37e3570d260e2b1abfcb