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 ('053a46d14445d89632cbaca1cdffdb23','0','52.14.130.13','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714039273','register.php?sid=efcb12d1f2959d5b3228095a9d234799','0','0','')
mysql error: Duplicate entry '053a46d14445d89632cbaca1cdffdb23' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 25.04.2024 @ 12:01
Script: /register.php?sid=efcb12d1f2959d5b3228095a9d234799
Referer: http://wehrbauten.de/register.php?sid=efcb12d1f2959d5b3228095a9d234799