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 ('d63b61ffa6bd293a3c46b40a381293ec','0','3.17.154.171','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)','1713945532','thread.php?threadid=55524&sid=1c9ec9d92a18d8593a0ecdb2bcf71a85','0','0','')
mysql error: Duplicate entry 'd63b61ffa6bd293a3c46b40a381293ec' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.44
php version: 5.2.17
Date: 24.04.2024 @ 09:58
Script: /thread.php?threadid=55524&sid=1c9ec9d92a18d8593a0ecdb2bcf71a85
Referer: http://your-wbb.de/thread.php?threadid=55524&sid=1c9ec9d92a18d8593a0ecdb2bcf71a85