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 ('0ff4d96f47fc27b6464db25b160d2200','0','13.59.205.183','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715492715','board.php?boardid=21&sid=8e958056ed5830d97ad5bd196edebd43','0','0','')
mysql error: Duplicate entry '0ff4d96f47fc27b6464db25b160d2200' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.41
php version: 5.3.29
Date: 12.05.2024 @ 07:45
Script: /wbb2/board.php?boardid=21&sid=8e958056ed5830d97ad5bd196edebd43
Referer: