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 ('e4e6f439b9064cc013ce0abf2951edb3','0','3.134.96.60','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715973053','board.php?boardid=528&sid=7402c615c2df020afd29183d3ba01226','0','0','')
mysql error: Duplicate entry 'e4e6f439b9064cc013ce0abf2951edb3' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 17.05.2024 @ 21:10
Script: /board.php?boardid=528&sid=7402c615c2df020afd29183d3ba01226
Referer: