phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'dcd075b7d91bf6a2629fbd1ae30c8bc4' 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 ('dcd075b7d91bf6a2629fbd1ae30c8bc4', -1, 1544994866, 1544994866, '23afb66a', -9, 0, 0)

Line : 187
File : sessions.php