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 ('742ac0711b311ecdc871fc69f9a2bdfd','0','3.17.79.60','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715278102','thread.php?threadid=1087&goto=lastpost&sid=b9968a121b8ed4147c45995005fd4965','0','0','')
mysql error: Duplicate entry '742ac0711b311ecdc871fc69f9a2bdfd' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 09.05.2024 @ 20:08
Script: /thread.php?threadid=1087&goto=lastpost&sid=b9968a121b8ed4147c45995005fd4965
Referer: http://wehrbauten.de/thread.php?threadid=1087&goto=lastpost&sid=b9968a121b8ed4147c45995005fd4965