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 ('f6bfbe98e72315b54aa0e4c30b949853','0','18.119.116.43','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715536987','board.php?boardid=404&sid=9712438d57639dc3648d37f621044693','0','0','')
mysql error: Duplicate entry 'f6bfbe98e72315b54aa0e4c30b949853' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 12.05.2024 @ 20:03
Script: /board.php?boardid=404&sid=9712438d57639dc3648d37f621044693
Referer: