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 ('af8564083a684c226343c2cfcd86b0d4','0','3.149.233.72','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714899577','board.php?boardid=39&sid=a686cc237c3ad5f6c493f7f27f0c708f','0','0','')
mysql error: Duplicate entry 'af8564083a684c226343c2cfcd86b0d4' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 05.05.2024 @ 10:59
Script: /board.php?boardid=39&sid=a686cc237c3ad5f6c493f7f27f0c708f
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