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 ('1447337b83b02977b02b003a49f8142b', -1, 1713989935, 1713989935, '12dd8113', -10, 0, 0)

Line : 187
File : sessions.php