I'd like to know if there's any way to get rid of error 507 without the app constantly asking me to close the app.
As @Anke has already said, the error 507 has been treated so many times.
Please have a look here and see if you can find the solution:
If not, please post more details (or your .aia).
PS. One of the most common root causes of the 507 is the switching between screens. When a BT communication is active: and the screen is changed (switched), the communication ceases and if you have a clock that retrieves data from the BT, it generates the error.