phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '0055f5b685fb0f7573a2dece97c93c2b' 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 ('0055f5b685fb0f7573a2dece97c93c2b', -1, 1770500155, 1770500155, '00000000', 5, 0, 0)

Line : 187
File : sessions.php