AI features disabled accidentally

When i get my Cursor auto updated to the latest version, all my file in the product can not work.
i was working as usual, then i realize that the auto-fill couldn’t work. And all my files in the list shows a wrong message called “AI features disabled(File in .cursorignore”. But it doesn’t make sense whatever i update the ignore file. it seems that the CursorIgnore has been banned as well!
How can i make ai work again?
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