Aura Component – Blank White Window Issue

Hello everyone
I created my aura component and added it like a button.
First I created an action in (Buttons, Links and Actions) section on object and then added it in (page layouts) ->(Salesforce Mobile and Lightning Experience Actions).
But when I click button it open empty window. I don't need a window at all. All functionality of my aura is call a method while initialization with

<aura:handler name="init" value="{!this}" action="{!c.doInit}"/>

in aura component

<aura:component implements="flexipage:availableForAllPageTypes,force:hasRecordId,force:lightningQuickAction"
                controller="ComponentController">
    <aura:handler name="init" value="{!this}" action="{!c.doInit}"/>
</aura:component>

this is code ComponentController.js

({

    doInit: function (cmp, event, helper){
        cmp.set('v.showSpinner',true);
        helper.isUpdatableRecord(cmp, event);
    },
    
});

I don't show code of helper because it isn't need, in it is only work with fields.
There is the picture below, where you can see the empty win and button "cancel"(i have no it in my component for example…).
I hope I describe the problem clear, thanks for your attention