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 ('e57a80c3313c0b46a39adc5bb6bf85bd','0','18.119.136.9','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715511472','index.php?sid=dacb4d0e1e6b7dc91c21c6e3519f3e50','0','0','')
mysql error: Duplicate entry 'e57a80c3313c0b46a39adc5bb6bf85bd' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 12.05.2024 @ 12:57
Script: /index.php?sid=dacb4d0e1e6b7dc91c21c6e3519f3e50
Referer: http://wehrbauten.de/index.php?sid=dacb4d0e1e6b7dc91c21c6e3519f3e50