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 ('94972bdea42abfedde42004c68a5eea4','0','3.128.197.221','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1716392761','board.php?boardid=38&sid=66441a65479242733a1dbf5a2d60ecd9','0','0','')
mysql error: Duplicate entry '94972bdea42abfedde42004c68a5eea4' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 22.05.2024 @ 17:46
Script: /board.php?boardid=38&sid=66441a65479242733a1dbf5a2d60ecd9
Referer: