phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'fffb8f688fdc0e6f20d53f1388a5cd6f' 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 ('fffb8f688fdc0e6f20d53f1388a5cd6f', -1, 1715906781, 1715906781, '030ca241', 0, 0, 0)

Line : 187
File : sessions.php