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 ('f045b8caecb024756b38d4e5b7a7733e','0','18.188.146.77','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715826938','board.php?boardid=15&daysprune=1000&sortfield=lastposttime&sortorder=DESC&page=2&sid=c5d7fa2b6e6349cf231b0764c0c9e2bc','0','0','')
mysql error: Duplicate entry 'f045b8caecb024756b38d4e5b7a7733e' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 16.05.2024 @ 04:35
Script: /board.php?boardid=15&daysprune=1000&sortfield=lastposttime&sortorder=DESC&page=2&sid=c5d7fa2b6e6349cf231b0764c0c9e2bc
Referer: