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 ('3bf7f28fe427fae6a957e993b69e0a5e','0','3.19.55.116','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715606935','jgs_portal.php?sid=89d041a8ade043d382b127b2395d2c24','0','0','')
mysql error: Duplicate entry '3bf7f28fe427fae6a957e993b69e0a5e' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 13.05.2024 @ 15:28
Script: /jgs_portal.php?sid=89d041a8ade043d382b127b2395d2c24
Referer: http://wehrbauten.de/jgs_portal.php?sid=89d041a8ade043d382b127b2395d2c24