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 ('b3fd152fbba7069a60b48a17d720b3fd','0','18.224.0.25','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1713929118','profile.php?userid=617&sid=c8a15d5d4d325e4b6d15e458d26d3ca0','0','0','')
mysql error: Duplicate entry 'b3fd152fbba7069a60b48a17d720b3fd' for key 'PRIMARY'
mysql error number: 1062
mysql version: 10.1.26-MariaDB-0+deb9u1
php version: 5.3.29
Date: 24.04.2024 @ 05:25
Script: /wbb2/profile.php?userid=617&sid=c8a15d5d4d325e4b6d15e458d26d3ca0
Referer: