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 ('5051b574c9a04901f66456dfbd5b2f63','0','3.14.253.221','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714220329','thread.php?goto=lastpost&threadid=1348&sid=2d2cf835158445e0de49dc241be58a49','0','0','')
mysql error: Duplicate entry '5051b574c9a04901f66456dfbd5b2f63' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.5.62-0+deb8u1
php version: 5.6.40-0+deb8u12
Date: 27.04.2024 @ 14:18
Script: /board/thread.php?goto=lastpost&threadid=1348&sid=2d2cf835158445e0de49dc241be58a49
Referer: