phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('1c76a5f2e8861d1a52e7665d0f61e7b9', -1, 1714012218, 1714012218, '12745548', -1, 0, 0)

Line : 187
File : sessions.php