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 ('e978c2dba980553472aeb11b2dbf0a5d','0','3.147.59.31','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1716091859','editpost.php?postid=59809&sid=3a60ecdb5ef2a159a656959f078d8a26','0','0','')
mysql error: Duplicate entry 'e978c2dba980553472aeb11b2dbf0a5d' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 19.05.2024 @ 06:10
Script: /editpost.php?postid=59809&sid=3a60ecdb5ef2a159a656959f078d8a26
Referer: