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 ('0a6b19963ff4b913c5882ebe23af794b','0','18.188.252.23','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714494179','board.php?boardid=190&sid=7957300991233f505584d91ad3d9630b','0','0','')
mysql error: Duplicate entry '0a6b19963ff4b913c5882ebe23af794b' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 30.04.2024 @ 18:22
Script: /board.php?boardid=190&sid=7957300991233f505584d91ad3d9630b
Referer: