Toucher | Mobile Gesture Library

I'm trying to send a GET request with Vue instead of sending it with POSTMAN for my small learning project. I have this code that handels that:

My question is very related to this question but not quite the same. It's a follow up question on my previous one if you have read it but it doesn't depend on it that much, so reading this question only should be enough. I have this method to save a 'touch' on a 'cabin' (I know it's odd). I (try to) do so be extracting information from a POST request, and test it using POSTMAN.

I created a simple activity where in if you press inside the circular area, the text in it should change accordingly. The app runs well but when I press inside the circular area, I get an error saying "undefined is not a function ( evaluating 'this.setState( {pressing: true});' ) ". Also, the text inside the circular area should be initially set but it is empty. You can see the activity here. The code is also provided below:

When my ball hits but 30 targets 30 new returns except I have an error message lua:76: physics.addBody() cannot be called when the world is locked and in the middle of number crunching, such as during a collision event why ?

I have two navbars on the left side of my page. Until I put some links into the right navbar everything worked fine. However once text was added into the right navbar, problems with the dropdown menus occured. Links in the dropdown and the rightmost navbar seem to conflict, as I can't click on the submenus of my principal navbar anymore. I tried looking for some property to bring the dropdown to the foreground but couldn't find anything useful.