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 ('1e72d30ea59aa467140a2702641a9c06','0','3.144.189.177','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714599690','calendar.php?sid=0c572e0e4f9f9b4001f1cee5ac8cc119','0','0','')
mysql error: Duplicate entry '1e72d30ea59aa467140a2702641a9c06' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 01.05.2024 @ 23:41
Script: /calendar.php?sid=0c572e0e4f9f9b4001f1cee5ac8cc119
Referer: http://wehrbauten.de/calendar.php?sid=0c572e0e4f9f9b4001f1cee5ac8cc119