Critical Issue with ANRs in our App

Hello everyone,
Google informed us about a Critical Issue and a Red Dot with our app about ANRs (App Not Responding).
I checked the reports, and apperently all are " Input dispatching timed out" at different places.
Here is more information about the errors

  1. Input dispatching timed out (Waiting to send non-key event because the touched window has not finished processing certain input events that were delivered to it over 500.0ms ago. Wait queue length: 2. Wait queue head age: 7367.9ms.), VisibleToUser

  2. Input dispatching timed out (Waiting because no window has focus but there is a focused application that may eventually add a window when it finishes starting up.)

  3. Input dispatching timed out (Waiting because the touched window’s input channel is full. Outbound queue length: 1. Wait queue length: 52.)

Anyone have any idea what might causes those ANRs ?