phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('9a349a5621cfc4fe4a0c15d281fc4a78', -1, 1715040364, 1715040364, '03114f3b', 1, 0, 0)

Line : 189
File : sessions.php