No app in particular. I can just use normally and then a dialog box pops up and says "Cannot load data, please try again".
Hope this helps:
Clearing Cache
This is the first thing which you must do whenever you get any Google Play store error. Clearing cache will solve most of the errors itself, you don’t have to do anything else.
Go to Settings > Apps
Scroll down until you find ‘Google Play Store’
Tap on it > Clear Cache
This will clear the Play Store cache, next go back to Settings > Apps. Scroll down to Google Play Services > Clear Cache.
Next Go to Google Services Framework > Clear Cache
Now that you’ve cleared cache. Remove your Google Account by going to Settings > Accounts. Restart device, Add your Google Account once again and see if the error persists.
Check Date / Time Settings
If clearing cache does not work then you might want to check if your date and time is correct, sometimes wrong date and time can cause No Connection error. Check and fix the date and time setting on your Xiaomi device and this might fix the error, if it doesn’t, go to the next trick.
Reinstalling Play Store
If the above method does not work then the best way to fix this is by re-installing Play Store on your Xiaomi device. Below are the steps which you can follow for manually installing Play Store on your device.
Uninstall Play Store First by dragging it to the top > Uninstall
Go to Settings > General Settings > Security
Make sure that ‘Unknown Sources’ is enabled. If not then do it yourself.
Go to this page and download the latest Google Play Store Apk file.
Copy the file to your device.
Install the Play Store Apk file by tapping on it and following screen instructions.
After Re-installing Play Store, restart device.
After restarting the device, you’ll find the Play Store app on your home screen, open it and follow the instructions. This should solve the problem 100 percent.
... I mean press that Update button...