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 ('989ce402cc910724c7f2488f49fcc2f2','0','18.218.70.93','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714958584','board.php?boardid=488&sid=3700f728db44d9d20cdbd859e1b4343e','0','0','')
mysql error: Duplicate entry '989ce402cc910724c7f2488f49fcc2f2' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 06.05.2024 @ 03:23
Script: /board.php?boardid=488&sid=3700f728db44d9d20cdbd859e1b4343e
Referer: