SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6 pl2): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('61607217aea5788d9772d613d053dfc7','0','52.14.1.136','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715073336','formmail.php?threadid=1359','0','0','')
mysql error: Duplicate entry '61607217aea5788d9772d613d053dfc7' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 07.05.2024 @ 11:15
Script: /formmail.php?threadid=1359
Referer: