Experienced developer who can fix a bug in kotlin android project

We are looking for an experienced android developer who can start work now on a bug in our vendor app
the bug details are given below
Inside the app there is a menu icon called items where all the items are listed
we can enable and disable it by toggle the button
Those toggle button is not functioning properly.
For example if we enable all the item then reload or come back again from any other page will show all the enabled items are kepp to old status .and also app getting crashed

We requesting to the developers, who are not get time to start this project now ,please excuse.
We need a regular developer bcoz there is many project in que to start.We considering this small project as a trail to identify an excellent android developer who have quick logic capability and hard working mind. If you have experience in flutter that will be great for our other projets