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 ('70d24d0f39fa0d900ccbb525fbe31914','0','18.188.249.30','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715793777','board.php?boardid=78&sid=b1c4b869bb43627ac4448f0f0a540b8a','0','0','')
mysql error: Duplicate entry '70d24d0f39fa0d900ccbb525fbe31914' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 15.05.2024 @ 19:22
Script: /board.php?boardid=78&sid=b1c4b869bb43627ac4448f0f0a540b8a
Referer: http://wehrbauten.de/board.php?boardid=78&sid=b1c4b869bb43627ac4448f0f0a540b8a