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 ('a4d6000e2936401de9e20a9bc22e2b1b','0','13.59.248.108','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1716279228','search.php?sid=c53f22e90a4fbbd520081c515b9f5ce9','0','0','')
mysql error: Duplicate entry 'a4d6000e2936401de9e20a9bc22e2b1b' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 21.05.2024 @ 10:13
Script: /search.php?sid=c53f22e90a4fbbd520081c515b9f5ce9
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