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 ('77fd4b8d0ccdb64d631d364da88db86b','0','3.19.30.232','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714777546','board.php?boardid=748&sid=03b9d8cf80c9e892624a6c6fbd635b28','0','0','')
mysql error: Duplicate entry '77fd4b8d0ccdb64d631d364da88db86b' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 04.05.2024 @ 01:05
Script: /board.php?boardid=748&sid=03b9d8cf80c9e892624a6c6fbd635b28
Referer: