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 ('a57519bb3c88ed16bf7fe1fcae982df9','0','18.223.124.244','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715136016','markread.php?boardid=51&sid=de8cc4156bea630198371fefb35f3237','0','0','')
mysql error: Duplicate entry 'a57519bb3c88ed16bf7fe1fcae982df9' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 08.05.2024 @ 04:40
Script: /markread.php?boardid=51&sid=de8cc4156bea630198371fefb35f3237
Referer: