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 ('82b5e7c2dde0c7d06daf8fb54b0adcf1', -1, 1715178226, 1715178226, '0389b285', 4, 0, 0)

Line : 189
File : sessions.php