How to stop two finger touches on Screen

Question

i had used this library for the draggable view for items react-native-draggable-gridview in that library i don't know how to stop two finger touches on the screen , i tried so many stuff but i didn't succeed.

here is the my code for gridView :-

<GridView
          keyExtractor={(item) => item.id}
          contentContainerStyle={styles.dragContainer}
          showsVerticalScrollIndicator={false}
          data={dragdata}
          numColumns={2}
          renderItem={renderItem}
          onReleaseCell={onReleaseCell}
          disableIntervalMomentum={true}
        />

below i shred the errors of the code when user touch the screen with two finger.