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 ('b5eaa9bc7b79b3b317ad545a055c6689','0','3.17.174.239','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714631438','index.php?sid=98e195dc049dfb47b3f70e9663d14b8d','0','0','')
mysql error: Duplicate entry 'b5eaa9bc7b79b3b317ad545a055c6689' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 02.05.2024 @ 08:30
Script: /index.php?sid=98e195dc049dfb47b3f70e9663d14b8d
Referer: http://wehrbauten.de/index.php?sid=98e195dc049dfb47b3f70e9663d14b8d