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 ('e2d00e6437c40fd9619330de2e89f5fc','0','13.59.36.203','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714045514','usercp.php?action=buddy&add=698&sid=3dd1cd82864a6354fd000c85a24794a3','0','0','')
mysql error: Duplicate entry 'e2d00e6437c40fd9619330de2e89f5fc' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.5.62-0+deb8u1
php version: 5.6.40-0+deb8u12
Date: 25.04.2024 @ 13:45
Script: /board/usercp.php?action=buddy&add=698&sid=3dd1cd82864a6354fd000c85a24794a3
Referer: