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 ('6cfa278d40edaa98ee0db523cf9b12fd', -1, 1715313887, 1715313887, '12e0274a', -10, 0, 0)

Line : 189
File : sessions.php