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 ('a979961e4ea4052f9e430092f6524525','0','3.145.91.37','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715932931','memberslist.php?sid=f5446ae4cc263b4bdf1a2a355378c6c2','0','0','')
mysql error: Duplicate entry 'a979961e4ea4052f9e430092f6524525' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 4.4.9
Date: 17.05.2024 @ 10:02
Script: /board/memberslist.php?sid=f5446ae4cc263b4bdf1a2a355378c6c2
Referer: