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 ('5fd0b20db11a7b5d098f5490736d41b3','0','3.21.97.61','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715405020','misc.php?action=imprint&sid=f934493f84bc43dae57e9836896e3af2','0','0','')
mysql error: Duplicate entry '5fd0b20db11a7b5d098f5490736d41b3' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 11.05.2024 @ 07:23
Script: /misc.php?action=imprint&sid=f934493f84bc43dae57e9836896e3af2
Referer: http://wehrbauten.de/misc.php?action=imprint&sid=f934493f84bc43dae57e9836896e3af2