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 ('c33dda103356119d5dc6b3a1fd0c0e59','0','3.133.138.134','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715525681','usercp.php?action=addsubscription&threadid=1193&sid=4b6dc60aa3226ca84528701c1e5d81cf','0','0','')
mysql error: Duplicate entry 'c33dda103356119d5dc6b3a1fd0c0e59' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 12.05.2024 @ 16:54
Script: /usercp.php?action=addsubscription&threadid=1193&sid=4b6dc60aa3226ca84528701c1e5d81cf
Referer: http://wehrbauten.de/usercp.php?action=addsubscription&threadid=1193&sid=4b6dc60aa3226ca84528701c1e5d81cf