Android's battery optimisation is the usual cause. Open Settings → Apps → Adhan Time Pro → Battery and choose Unrestricted. The app also offers a shortcut for this under its own Settings screen.
Then check Settings → Apps → Special app access → Alarms & reminders and make sure Adhan Time Pro is allowed.
Mosques differ in the calculation method and the Asr school they follow. In the app, open Settings → Calculation Method and pick the one your region uses, and Juristic Method for Hanafi or Shafi'i Asr.
If a single prayer is still off by a few minutes, use Settings → Manual Corrections to shift that prayer only.
Move away from metal and electronics, then wave the phone in a figure-eight to recalibrate the magnetometer. Some devices have no compass sensor at all, in which case the arrow cannot work.
Grant the location permission in Android settings and make sure device location is switched on. You can also set your city manually under Settings → Location and leave the permission denied.
Downloads need a working internet connection and free storage. Manage what is stored under Quran → Download Manager, where you can also remove recitations you no longer need.
Remove the widget and add it again. If it still doesn't refresh, confirm the app is set to Unrestricted battery usage as described above.
Email benmwiam@gmail.com with your device model, Android version and a short description. The app's Settings → Diagnostics screen has a log you can copy into the message.