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 ('cd99dc6ba9dc0848c4dd6f9409df9563', -1, 1715101773, 1715101773, '038d1fd1', 7, 0, 0)

Line : 189
File : sessions.php