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 ('cda939c6ad73676cf8f7e59e43cdfb52','0','3.16.81.94','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714615056','usercp.php?action=addsubscription&boardid=401&sid=eca2aadedda66c39ff633afaf55b0928','0','0','')
mysql error: Duplicate entry 'cda939c6ad73676cf8f7e59e43cdfb52' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 02.05.2024 @ 03:57
Script: /usercp.php?action=addsubscription&boardid=401&sid=eca2aadedda66c39ff633afaf55b0928
Referer: