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 ('6446a17d54b2be66570b3776efa26222','0','18.224.180.183','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715807366','board.php?boardid=149&sid=0d0b3f4a322e5cc88f0ac8d0fee8a40d','0','0','')
mysql error: Duplicate entry '6446a17d54b2be66570b3776efa26222' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 15.05.2024 @ 23:09
Script: /board.php?boardid=149&sid=0d0b3f4a322e5cc88f0ac8d0fee8a40d
Referer: