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 ('1d279a3b43548640adc6789c49eed37b', -1, 1715316088, 1715316088, '0387bee8', -11, 0, 0)

Line : 189
File : sessions.php