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 ('ad5fc2778012dfd4c22969f592b17ebd','0','3.149.233.72','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714805405','profile.php?userid=670&sid=681a76d3a156b01a96b3fa3c9307ee25','0','0','')
mysql error: Duplicate entry 'ad5fc2778012dfd4c22969f592b17ebd' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 04.05.2024 @ 08:50
Script: /profile.php?userid=670&sid=681a76d3a156b01a96b3fa3c9307ee25
Referer: