phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '47dd1a7ec23903a229ab92c3dda790cb' 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 ('47dd1a7ec23903a229ab92c3dda790cb', -1, 1739742914, 1739742914, '12610e54', -4, 0, 0)

Line : 187
File : sessions.php