SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6 pl2): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('3cb93212d07cfa72f66c5f7f5ce808ee','0','3.133.86.172','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714343130','board.php?boardid=88&sid=7bac9c87b2b6ba32976acaff8b60f712','0','0','')
mysql error: Duplicate entry '3cb93212d07cfa72f66c5f7f5ce808ee' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.1.73-1
php version: 5.3.3-7+squeeze19
Date: 29.04.2024 @ 00:25
Script: /waller/board.php?boardid=88&sid=7bac9c87b2b6ba32976acaff8b60f712
Referer: