phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a8fc64ef1ff9058238c10066910df06b' for key 1

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('a8fc64ef1ff9058238c10066910df06b', -1, 1715792707, 1715792707, '12df1d3e', -4, 0, 0)

Line : 187
File : sessions.php