phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '8be4cf9af41a63a7074d8b581ed6f505' 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 ('8be4cf9af41a63a7074d8b581ed6f505', -1, 1769808544, 1769808544, 'd849d86e', 1, 0, 0)

Line : 187
File : sessions.php