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 ('458e3e4a16acc6ddf3f459e44b169ce4','0','18.216.73.219','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1717207466','calendar.php?sid=38df6ed34011ae0e3fe0be1986f67c04','0','0','')
mysql error: Duplicate entry '458e3e4a16acc6ddf3f459e44b169ce4' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 01.06.2024 @ 04:04
Script: /calendar.php?sid=38df6ed34011ae0e3fe0be1986f67c04
Referer: