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 ('cae2d134bd9a1395e05bf118aa2a6381', -1, 1713962325, 1713962325, '12e296af', 3, 0, 0)

Line : 187
File : sessions.php