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 ('96300561999ccabe70f617cdadc5d770','0','18.225.98.111','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715662575','thread.php?goto=lastpost&threadid=612&sid=5573391ebc9f7a2043dfbdab1242aeb9','0','0','')
mysql error: Duplicate entry '96300561999ccabe70f617cdadc5d770' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 14.05.2024 @ 06:56
Script: /thread.php?goto=lastpost&threadid=612&sid=5573391ebc9f7a2043dfbdab1242aeb9
Referer: http://wehrbauten.de/thread.php?goto=lastpost&threadid=612&sid=5573391ebc9f7a2043dfbdab1242aeb9