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 ('a5b13fb54d3a139556262a8d67a5508d','0','3.141.166.152','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1716539552','thread.php?hilightuser=0&threadid=19554&threadview=0','0','0','')
mysql error: Duplicate entry 'a5b13fb54d3a139556262a8d67a5508d' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.33-0ubuntu0.16.04.1
php version: 5.6.40
Date: 24.05.2024 @ 10:32
Script: /thread.php?hilightuser=0&threadid=19554&threadview=0
Referer: