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 ('78dac77fdcfa97355c01fd59a110d8e1','0','3.149.242.118','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715785802','thread.php?goto=lastpost&threadid=958&sid=7587405207aa84394d8e1ee0009e906c','0','0','')
mysql error: Duplicate entry '78dac77fdcfa97355c01fd59a110d8e1' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 15.05.2024 @ 17:10
Script: /thread.php?goto=lastpost&threadid=958&sid=7587405207aa84394d8e1ee0009e906c
Referer: