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 ('60c2e08feab8816a0ac1cb1f2386d2a0', -1, 1715114951, 1715114951, '03111c30', -11, 0, 0)

Line : 189
File : sessions.php