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 ('d3f24e815480cfe58d41de3e52aff609','0','18.222.118.14','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715849606','formmail.php?userid=1477&sid=5d80907398c2615f3cb121e6348b7a67','0','0','')
mysql error: Duplicate entry 'd3f24e815480cfe58d41de3e52aff609' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 16.05.2024 @ 10:53
Script: /formmail.php?userid=1477&sid=5d80907398c2615f3cb121e6348b7a67
Referer: