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 ('f888a5c4782db399dc7398af6cc27d5c','0','3.137.181.66','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715865171','index.php?sid=df237e37d2e48a0065e443cf15fa8449','0','0','')
mysql error: Duplicate entry 'f888a5c4782db399dc7398af6cc27d5c' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 16.05.2024 @ 15:12
Script: /index.php?sid=df237e37d2e48a0065e443cf15fa8449
Referer: