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 ('4c9c291b11a609f179e1bedadffae701','0','13.59.199.250','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1716255460','usercp.php?action=addsubscription&threadid=2441&sid=f3a8ba2244e42d5a51ff14a284f92df7','0','0','')
mysql error: Duplicate entry '4c9c291b11a609f179e1bedadffae701' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 21.05.2024 @ 03:37
Script: /usercp.php?action=addsubscription&threadid=2441&sid=f3a8ba2244e42d5a51ff14a284f92df7
Referer: