phpBB : Critical Error

Error creating new sessions

DEBUG MODE

SQL Error : 1062 Duplicate entry 'b65318ad378165140bc3aceef09792ba' for key 1

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('b65318ad378165140bc3aceef09792ba', -1, 1513573138, 1513573138, '36dd4c44', -4, 0, 0)

Line : 187
File : sessions.php