phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'b475bb6f77dc9098f1021850d429e2ad' 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 ('b475bb6f77dc9098f1021850d429e2ad', -1, 1548182003, 1548182003, '36e34cb4', 19, 0, 0)

Line : 198
File : sessions.php