SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6 pl2): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('53339598da3080bb94843ce7a6ac4f49','0','3.129.13.201','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714637173','markread.php?boardid=177','0','0','')
mysql error: Duplicate entry '53339598da3080bb94843ce7a6ac4f49' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 02.05.2024 @ 10:06
Script: /markread.php?boardid=177
Referer: