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 ('38f3f192852f2e3238b3ea091311115f','0','3.145.143.239','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714992769','board.php?boardid=142&sid=d3d38c0f7f3e3f32c292c363a0b2cea6','0','0','')
mysql error: Duplicate entry '38f3f192852f2e3238b3ea091311115f' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 06.05.2024 @ 12:52
Script: /board.php?boardid=142&sid=d3d38c0f7f3e3f32c292c363a0b2cea6
Referer: http://wehrbauten.de/board.php?boardid=142&sid=d3d38c0f7f3e3f32c292c363a0b2cea6