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 ('1ab1421303470358540ad5531a058d93','0','3.145.108.9','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715026443','misc.php?action=imprint&sid=aff3f7e838e226e903b50bb41d8f0070','0','0','')
mysql error: Duplicate entry '1ab1421303470358540ad5531a058d93' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 06.05.2024 @ 22:14
Script: /misc.php?action=imprint&sid=aff3f7e838e226e903b50bb41d8f0070
Referer: