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 ('e4de23dd764d1839da972c2fb8dc2d5f','0','18.216.190.182','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715482626','board.php?boardid=357&page=1&daysprune=1000&sortfield=topic&sortorder=ASC&sid=3b48a96b02d1d343dd7269dbf1dce8a1','0','0','')
mysql error: Duplicate entry 'e4de23dd764d1839da972c2fb8dc2d5f' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 12.05.2024 @ 04:57
Script: /board.php?boardid=357&page=1&daysprune=1000&sortfield=topic&sortorder=ASC&sid=3b48a96b02d1d343dd7269dbf1dce8a1
Referer: