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 ('fd6b4dfdf785e9c49ddcd67c934ea55f','0','18.225.11.98','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715058739','thread.php?goto=nextnewest&threadid=2360&sid=37f46ead25993679989113f3f65a80a4','0','0','')
mysql error: Duplicate entry 'fd6b4dfdf785e9c49ddcd67c934ea55f' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.5.47-0ubuntu0.14.04.1
php version: 5.5.9-1ubuntu4.14
Date: 07.05.2024 @ 07:12
Script: /wbb2/thread.php?goto=nextnewest&threadid=2360&sid=37f46ead25993679989113f3f65a80a4
Referer: