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 ('944922a823ee3b8660f37c4aec9fe753','0','3.133.147.87','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715125456','board.php?boardid=776&sid=fcc6824557ecd91ad6c19d10ab518ebe','0','0','')
mysql error: Duplicate entry '944922a823ee3b8660f37c4aec9fe753' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 08.05.2024 @ 01:44
Script: /board.php?boardid=776&sid=fcc6824557ecd91ad6c19d10ab518ebe
Referer: http://wehrbauten.de/board.php?boardid=776&sid=fcc6824557ecd91ad6c19d10ab518ebe