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 ('2670d88fb63d231d4578b46363751860','0','18.227.48.131','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715415542','board.php?boardid=640&sid=00c4a68411e322d46ddce1730606c19e','0','0','')
mysql error: Duplicate entry '2670d88fb63d231d4578b46363751860' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 11.05.2024 @ 10:19
Script: /board.php?boardid=640&sid=00c4a68411e322d46ddce1730606c19e
Referer: