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 ('d261d30f9b51eb9e70c3bf9d65696312','0','3.144.254.133','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715482574','usercp.php?action=addsubscription&boardid=108&sid=e0174e824b0acb046a3ff3e1b4cffe3f','0','0','')
mysql error: Duplicate entry 'd261d30f9b51eb9e70c3bf9d65696312' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 12.05.2024 @ 04:56
Script: /usercp.php?action=addsubscription&boardid=108&sid=e0174e824b0acb046a3ff3e1b4cffe3f
Referer: http://wehrbauten.de/usercp.php?action=addsubscription&boardid=108&sid=e0174e824b0acb046a3ff3e1b4cffe3f