Dashboard data not loading

I didn't change anything in my server and its worked find but now data not show and even can't edit. How can i fix this issue
Please refer below image

Hi @Shamila
Post "Diagnostic Info" from Admin > Troubleshooting.
Check your logs for errors in Admin > Troubleshooting > Logs.

Hi @Shamila,

Are the individual elements of the dashboard displayed correctly?
To check it, you should click on the title of part of the dashboard.

@inzKarwowski When you see "Still waiting...", then there's a connection issue somewhere, so it will not help to view the question.

You, probably right.
I suggest viewing the question because maybe there's a problem with the performance of the dashboard, not with the question.