phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'ff9e1040e183e83dfb1c85d11d3e64bd' for key 'phpbb_sessions.PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('ff9e1040e183e83dfb1c85d11d3e64bd', -1, 1714201339, 1714201339, '12740d71', -4, 0, 0)

Line : 187
File : sessions.php