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 ('d9bd077a8efb52534fae96cbf5e101cc','0','18.221.85.33','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715309968','board.php?boardid=39&sid=75b7673fe270dd50b5894d499da21af3','0','0','')
mysql error: Duplicate entry 'd9bd077a8efb52534fae96cbf5e101cc' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 10.05.2024 @ 04:59
Script: /board.php?boardid=39&sid=75b7673fe270dd50b5894d499da21af3
Referer: