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 ('eb5170fedd6afc0526d7d852c4992000','0','18.191.43.140','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714628153','formmail.php?userid=1&sid=3b2c6f59bca4f5437063335d9c2c90ff','0','0','')
mysql error: Duplicate entry 'eb5170fedd6afc0526d7d852c4992000' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 02.05.2024 @ 07:35
Script: /formmail.php?userid=1&sid=3b2c6f59bca4f5437063335d9c2c90ff
Referer: http://wehrbauten.de/formmail.php?userid=1&sid=3b2c6f59bca4f5437063335d9c2c90ff