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 ('bdedc63ab90af4570eb96898a6f717d3','0','18.119.105.239','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715066066','board.php?boardid=240&sid=25a359bb5b6f54a00000a21603d4f206','0','0','')
mysql error: Duplicate entry 'bdedc63ab90af4570eb96898a6f717d3' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 07.05.2024 @ 09:14
Script: /board.php?boardid=240&sid=25a359bb5b6f54a00000a21603d4f206
Referer: http://wehrbauten.de/board.php?boardid=240&sid=25a359bb5b6f54a00000a21603d4f206