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 ('fadd3dba3b152eb1adf8755c953e7c69','0','18.116.40.47','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715395109','thread.php?threadid=639&page=4&sid=f03c2c25e773d8959d9d57b8e4ae815e','0','0','')
mysql error: Duplicate entry 'fadd3dba3b152eb1adf8755c953e7c69' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 11.05.2024 @ 04:38
Script: /thread.php?threadid=639&page=4&sid=f03c2c25e773d8959d9d57b8e4ae815e
Referer: