phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '5da12941f61b2faa50356f20d5aae9f0' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('5da12941f61b2faa50356f20d5aae9f0', -1, 1779998853, 1779998853, 'd849d843', -9, 0)

Line : 180
File : /www/includes/sessions.php