Why is Google page speed showing this for my site

Question

For few days google page speed is showing only "?" . I can not understand why i am watching this for my site. Does it hamper my site ranking ? How can I fix this?

The result screen shot is bellow 

Comments

It appears this issue has been fixed. It's showing results for me:
https://developers.google.com/speed/pagespeed/insights/?url=http%3A%2F%2Fwww.ask-ans.com%2F&tab=desktop

Answer 1

Field data means the cumulative data of real users who browse your site.

Lab data is something temporary, or at the moment you are testing.

Field data may need a month to collect if your site is new or if you've requested Google to recalculate your Core Web Vitals report.

Comments

I mean to say why google page speed inside is showing "?" instead of number

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Not enough data!

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How to solve this ?

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You don't need to solve cause it's not a problem. Just let days go by, and Google have more data to calculate and show it to you.

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Thank you so much. I was in tension for this.