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 ('ca71246588af548a05152ca5addf2f9f','0','18.225.56.251','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1716177652','memberslist.php?sid=c96a65ca53c00ac7f182b34418080fa3','0','0','')
mysql error: Duplicate entry 'ca71246588af548a05152ca5addf2f9f' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 4.4.9
Date: 20.05.2024 @ 06:00
Script: /board/memberslist.php?sid=c96a65ca53c00ac7f182b34418080fa3
Referer: