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 ('1eb5278f0910fc6e1ef48c8e735f8ad3','0','18.221.141.44','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715520866','thread.php?goto=lastpost&threadid=1946&sid=2722eab11a6527300b9fd53c4f39273e','0','0','')
mysql error: Duplicate entry '1eb5278f0910fc6e1ef48c8e735f8ad3' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 12.05.2024 @ 15:34
Script: /thread.php?goto=lastpost&threadid=1946&sid=2722eab11a6527300b9fd53c4f39273e
Referer: http://wehrbauten.de/thread.php?goto=lastpost&threadid=1946&sid=2722eab11a6527300b9fd53c4f39273e