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 ('e6d72b3ccd5590ce17262bdc199b2bae','0','3.147.47.59','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1716397863','usercp.php?action=buddy&add=10&sid=bc83c57f91b496cbf2dce7dbd3e5731c','0','0','')
mysql error: Duplicate entry 'e6d72b3ccd5590ce17262bdc199b2bae' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 22.05.2024 @ 19:11
Script: /usercp.php?action=buddy&add=10&sid=bc83c57f91b496cbf2dce7dbd3e5731c
Referer: