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 ('a706849c0ab5182c44d2d4056a0110f7','0','3.145.173.112','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715074216','board.php?boardid=276&sid=b9715b81d9a0aa2e87f6b16e7284332f','0','0','')
mysql error: Duplicate entry 'a706849c0ab5182c44d2d4056a0110f7' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 07.05.2024 @ 11:30
Script: /board.php?boardid=276&sid=b9715b81d9a0aa2e87f6b16e7284332f
Referer: