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 ('8fe255b2f7232957d8e902ea2e1bc7b7', -1, 1711617296, 1711617296, '03eea1a5', -4, 0, 0)

Line : 187
File : sessions.php