SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6pl2): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('0b4b0ae8af1d7814d21187a7c9e3e56a','0','18.216.94.152','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715480075','search.php?action=user&userid=33&sid=8df40b91a4c8a40546d0a3d11f16c9ad','0','0','')
mysql error: Duplicate entry '0b4b0ae8af1d7814d21187a7c9e3e56a' for key 'PRIMARY'
mysql error number: 1062
mysql version: 10.1.48-MariaDB-0+deb9u2
php version: 5.2.6
Date: 12.05.2024 @ 04:14
Script: /search.php?action=user&userid=33&sid=8df40b91a4c8a40546d0a3d11f16c9ad
Referer: