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 ('dd8a7d7e672016146c5d1ab6fa7c1df3','0','18.188.246.27','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715951562','jgs_portal.php?sid=0ae3ff83f46a0bdc6e1abdbd6a338f78','0','0','')
mysql error: Duplicate entry 'dd8a7d7e672016146c5d1ab6fa7c1df3' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 17.05.2024 @ 15:12
Script: /jgs_portal.php?sid=0ae3ff83f46a0bdc6e1abdbd6a338f78
Referer: http://wehrbauten.de/jgs_portal.php?sid=0ae3ff83f46a0bdc6e1abdbd6a338f78