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 ('1cf1a7035deae1f50fa27d00d07ccd98','0','13.59.18.83','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715612511','misc.php?action=imprint&sid=1166e4f096fbdc5e6dcc597ba83dcf62','0','0','')
mysql error: Duplicate entry '1cf1a7035deae1f50fa27d00d07ccd98' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 13.05.2024 @ 17:01
Script: /misc.php?action=imprint&sid=1166e4f096fbdc5e6dcc597ba83dcf62
Referer: