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 ('4828d1e5a4026bcf31c0a5693b5b9359', -1, 1730416036, 1730416036, '039151ad', -1280, 0, 0)

Line : 195
File : sessions.php