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 ('d2dc3dcfe23c8a00aae28949b12b9df0','0','18.222.240.21','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715309807','board.php?boardid=648&sid=b96420616e90ddb3ae82d5c8966a5024','0','0','')
mysql error: Duplicate entry 'd2dc3dcfe23c8a00aae28949b12b9df0' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 10.05.2024 @ 04:56
Script: /board.php?boardid=648&sid=b96420616e90ddb3ae82d5c8966a5024
Referer: