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 ('476fb5679f91ca0d325c418f2926e077','0','3.22.77.117','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715885133','board.php?boardid=385&sid=385e5b77c009af0b5c7f49c0fd3d8276','0','0','')
mysql error: Duplicate entry '476fb5679f91ca0d325c418f2926e077' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 16.05.2024 @ 20:45
Script: /board.php?boardid=385&sid=385e5b77c009af0b5c7f49c0fd3d8276
Referer: