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 ('2efb989a8f32c16690dad1a8ba1de9b1','0','3.145.188.160','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715542746','forgotpw.php?sid=d3838ee74d5f50d075430a5963d1cb82','0','0','')
mysql error: Duplicate entry '2efb989a8f32c16690dad1a8ba1de9b1' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 12.05.2024 @ 21:39
Script: /forgotpw.php?sid=d3838ee74d5f50d075430a5963d1cb82
Referer: http://wehrbauten.de/forgotpw.php?sid=d3838ee74d5f50d075430a5963d1cb82