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 ('3bbe82c359d8556967a3eccd3f9dc002', -1, 1714093573, 1714093573, '030fe5a4', -9, 0, 0)

Line : 187
File : sessions.php