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 ('e67baefb8c9a921224dc9d0e725a49a4','0','18.223.106.100','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714617484','board.php?boardid=113&sid=54cf65c2758f489ec6e3983c30a87439','0','0','')
mysql error: Duplicate entry 'e67baefb8c9a921224dc9d0e725a49a4' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 02.05.2024 @ 04:38
Script: /board.php?boardid=113&sid=54cf65c2758f489ec6e3983c30a87439
Referer: http://wehrbauten.de/board.php?boardid=113&sid=54cf65c2758f489ec6e3983c30a87439