phpBB : Kritischer Fehler

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '871dcf446478e512e01489e5e9054569' for key 'PRIMARY'

INSERT INTO df3_phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('871dcf446478e512e01489e5e9054569', -1, 1513435905, 1513435905, '36e2ac1e', -9, 0, 0)

Line : 187
File : sessions.php