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) VALUES ('1546122d321b9a39f7b9fc3f96a0a137', -1, 1714399026, 1714399026, '038e7cfc', 20, 0)

Line : 158
File : sessions.php