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 ('c1cc6d0bc3806ee0d706a5afb62baa45','0','18.117.154.41','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715751009','board.php?boardid=588&sid=e720c87d9ba4657b6773252d5b9a4173','0','0','')
mysql error: Duplicate entry 'c1cc6d0bc3806ee0d706a5afb62baa45' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 15.05.2024 @ 07:30
Script: /board.php?boardid=588&sid=e720c87d9ba4657b6773252d5b9a4173
Referer: