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 ('c95129c4ee9a5dc16cbec1b06c91f916','0','18.188.228.210','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1716245406','report.php?postid=84673&sid=29b0541c4a879355717f676b6a212257','0','0','')
mysql error: Duplicate entry 'c95129c4ee9a5dc16cbec1b06c91f916' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 21.05.2024 @ 00:50
Script: /report.php?postid=84673&sid=29b0541c4a879355717f676b6a212257
Referer: