phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'f63f904977d97b94d6138266452d7668' 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 ('f63f904977d97b94d6138266452d7668', -1, 1767752142, 1767752142, 'd849d805', 5, 0, 0)

Line : 187
File : sessions.php