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 ('17069cc913e20ce32f86498e33499284', -1, 1713569434, 1713569434, '12bfc36e', -4, 0, 0)

Line : 187
File : sessions.php