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 ('235b7763a546e47fd2478ce554a97355','0','13.58.39.23','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714948800','markread.php?boardid=218&sid=a9d06326f8a479f3b9197baa7855ad07','0','0','')
mysql error: Duplicate entry '235b7763a546e47fd2478ce554a97355' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 06.05.2024 @ 00:40
Script: /markread.php?boardid=218&sid=a9d06326f8a479f3b9197baa7855ad07
Referer: