phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'c139d9a7afa9393ea8ff81ba8f160212' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('c139d9a7afa9393ea8ff81ba8f160212', -1, 1779004686, 1779004686, 'd849d956', 11, 0, 0)

Line : 187
File : sessions.php