phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a1cfc5900662c77556dd643229c1e3fc' 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 ('a1cfc5900662c77556dd643229c1e3fc', -1, 1715882114, 1715882114, '03909670', 11, 0, 0)

Line : 187
File : sessions.php