A black screen appears when navigating between screens (from the first screen to the main screen) for the record there are 105 values that are transferred from the initial screen to the main screen via TinyDB
This is known and there are topics about it. In future please search the forum instead of spamming it.
You can first of all transfer the values using start value and also the screen is loading due to the high number of values as you mentioned that’s why black screen appears.