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 ('f6ad2779f0fc4ffc6038634458128fb1','0','3.22.61.187','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715412346','board.php?boardid=45&sid=64f69cc494ad5bc51477de337d4dd226','0','0','')
mysql error: Duplicate entry 'f6ad2779f0fc4ffc6038634458128fb1' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 11.05.2024 @ 09:25
Script: /board.php?boardid=45&sid=64f69cc494ad5bc51477de337d4dd226
Referer: