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 ('71958dd2ddc65b55b3756fe8e43d164d','0','3.141.31.209','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715247807','board.php?boardid=567&sid=8aa5c81486cb8bdb82a3e148ce7b0cb4','0','0','')
mysql error: Duplicate entry '71958dd2ddc65b55b3756fe8e43d164d' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 09.05.2024 @ 11:43
Script: /board.php?boardid=567&sid=8aa5c81486cb8bdb82a3e148ce7b0cb4
Referer: