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 ('aee01a9a57885d05d5dc40ca4e071c3c', -1, 1713467497, 1713467497, '0316f0cd', 2, 0, 0)

Line : 187
File : sessions.php