Why can't I install the pro extensions?

[DhaniAM]

error: GET https://registry.tiptap.dev/@tiptap-pro%2fextension-table-of-contents - 500
ERR_PNPM_FETCH_500  GET https://registry.tiptap.dev/@tiptap-pro%2Fextension-table-of-contents: Internal Server Error - 500

Here's content of my .npmrc file
@tiptap-pro:registry=https://registry.tiptap.dev/
//registry.tiptap.dev/:_authToken=${MY_TOKEN_HERE}

It used to work, but it doesn't work anymore