If your account is not authenticated properly, the store will refuse to load or make purchases. If you are seeing an "Order Pending" message that lasts for days, it usually means Google is unable to verify your payment details.
Fix Google Play App Install Errors: Troubleshoot Common Installation Problems
A failure in any of these components can manifest as an error message or a stalled download. If the problem disappears on mobile data, you may need to adjust your router settings or contact your internet service provider.
Error [Insufficient Storage] Self-explanatory; the device does not have enough free space to complete the download or update. Updating this information in your account settings typically resolves the hold on your downloads.
Fix Google Play App Install Errors and Their Solutions
Error Messages and Alerts Google Play communicates problems through specific error codes. Switching to a mobile data connection temporarily is a quick way to test if your Wi-Fi is the culprit.
More About Google play problems
Looking at Google play problems from another angle can help expand the discussion and give readers a second clear paragraph under the same section.
More perspective on Google play problems can make the topic easier to follow by connecting earlier points with a few simple takeaways.