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 ('b6f49e365f31a99b2662b4fafaee7883','0','18.118.193.123','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715805909','jgs_portal.php?sid=91e429eafc8a2349961c951974f7b287','0','0','')
mysql error: Duplicate entry 'b6f49e365f31a99b2662b4fafaee7883' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 15.05.2024 @ 22:45
Script: /jgs_portal.php?sid=91e429eafc8a2349961c951974f7b287
Referer: