phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a4d0471bc1dbbc6b2b411466c0d3c883' 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 ('a4d0471bc1dbbc6b2b411466c0d3c883', -1, 1715804428, 1715804428, '340fe76a', 0, 0, 0)

Line : 187
File : sessions.php