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 ('231af0bb993a5781fbcf5b770021eafc','0','18.191.181.231','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715045874','register.php?sid=4130fc04a6539d379fd4cabb0512bdc4','0','0','')
mysql error: Duplicate entry '231af0bb993a5781fbcf5b770021eafc' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 07.05.2024 @ 03:37
Script: /register.php?sid=4130fc04a6539d379fd4cabb0512bdc4
Referer: http://wehrbauten.de/register.php?sid=4130fc04a6539d379fd4cabb0512bdc4