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 ('03a2e77cc4135b6e749236b636432dfe','0','18.188.148.71','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715739418','board.php?boardid=320&page=1&daysprune=1000&sortfield=vote&sortorder=ASC&sid=44ec5301d3cbb99572efad81b63dc646','0','0','')
mysql error: Duplicate entry '03a2e77cc4135b6e749236b636432dfe' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 15.05.2024 @ 04:16
Script: /board.php?boardid=320&page=1&daysprune=1000&sortfield=vote&sortorder=ASC&sid=44ec5301d3cbb99572efad81b63dc646
Referer: http://wehrbauten.de/board.php?boardid=320&page=1&daysprune=1000&sortfield=vote&sortorder=ASC&sid=44ec5301d3cbb99572efad81b63dc646