SQL-DATABASE ERROR

Database error in WoltLab Burning Board (): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('64a90f3a911f5231dc14ef08cf69eb9e','0','18.191.202.45','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714202275','board.php?boardid=33157&sid=3297a064abc3555657e06e3025b6f396','0','0','')
mysql error: Duplicate entry '64a90f3a911f5231dc14ef08cf69eb9e' for key 'PRIMARY'
mysql error number: 1062
mysql version: 10.5.23-MariaDB-0+deb11u1
php version: 5.6.40
Date: 27.04.2024 @ 09:17
Script: /board.php?boardid=33157&sid=3297a064abc3555657e06e3025b6f396
Referer: