SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6 pl 2): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('aaf33d4e102c4256b5b97d853c84cb3a','0','3.142.171.180','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)','1713507413','search.php?sid=2ec9312d89644af7fc6f0e202623b3b0','0','0','')
mysql error: Duplicate entry 'aaf33d4e102c4256b5b97d853c84cb3a' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.44
php version: 5.2.17
Date: 19.04.2024 @ 08:16
Script: /search.php?sid=2ec9312d89644af7fc6f0e202623b3b0
Referer: http://your-wbb.de/search.php?sid=2ec9312d89644af7fc6f0e202623b3b0