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 ('c6da9973d6d93811ceb84b678866b96a','0','18.116.87.196','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1716127688','addreply.php?action=quote&postid=80074&sid=410eb0f9994f0db2197aac062308a987','0','0','')
mysql error: Duplicate entry 'c6da9973d6d93811ceb84b678866b96a' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 19.05.2024 @ 16:08
Script: /addreply.php?action=quote&postid=80074&sid=410eb0f9994f0db2197aac062308a987
Referer: