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 ('a57218b6fe9b59ab3fd3508b50e52041','0','18.226.98.183','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715845983','index.php?sid=72b2129d7ebaa5dae069b040c725c0d6','0','0','')
mysql error: Duplicate entry 'a57218b6fe9b59ab3fd3508b50e52041' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 16.05.2024 @ 09:53
Script: /index.php?sid=72b2129d7ebaa5dae069b040c725c0d6
Referer: