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 ('c89e960163e1c0e3bbe36aa031130c4b','0','3.147.84.71','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1716302356','thread.php?goto=lastpost&threadid=8080&sid=6404af4538eb5f146a4dd8de9c17c3e3','0','0','')
mysql error: Duplicate entry 'c89e960163e1c0e3bbe36aa031130c4b' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 21.05.2024 @ 16:39
Script: /thread.php?goto=lastpost&threadid=8080&sid=6404af4538eb5f146a4dd8de9c17c3e3
Referer: