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 ('0a59cb1eb089c7b58854eabbedb3fe16','0','18.216.43.163','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1716785582','register.php?sid=87da8c740bb3099ef34ae82809fbad00','0','0','')
mysql error: Duplicate entry '0a59cb1eb089c7b58854eabbedb3fe16' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 27.05.2024 @ 06:53
Script: /register.php?sid=87da8c740bb3099ef34ae82809fbad00
Referer: