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 ('b036df7749c1ec8cf063163390c3b79d', -1, 1713886216, 1713886216, '0a020003', 1, 0, 0)

Line : 187
File : sessions.php