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 ('a38a97ee98b52b9150995b09ef7297ff','0','18.222.10.9','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714416638','thread.php?threadid=4442&sid=e033e2a5389f359e5f5c7ce5637c925b','0','0','')
mysql error: Duplicate entry 'a38a97ee98b52b9150995b09ef7297ff' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 29.04.2024 @ 20:50
Script: /thread.php?threadid=4442&sid=e033e2a5389f359e5f5c7ce5637c925b
Referer: