phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'f694ec6fdc29b16c5d16fa705201004d' 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 ('f694ec6fdc29b16c5d16fa705201004d', -1, 1540357272, 1540357272, '369ed0bd', 17, 0, 0)

Line : 187
File : sessions.php