how do I get acces to apple connect app

Hi Muneeb57choudhary

Welcome to the Apple Community.

Re: how do I get sign in to app store?

Check that you are signed in (to your device) with your Apple ID:

Sign in with your Apple ID - Apple Support

What to do: If you can't connect to the App Store, iTunes Store, or other Apple services - Apple Support

How to: Get apps in the App Store on iPhone – Apple Support

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If it is the first time that you use the App Store"

Check that you have a valid payment method listed in your Apple ID account:

This is required by Apple, this first time, even if you only download free apps'

Payment methods that you can use with your Apple ID - Apple Support

How to: Add a payment method to your Apple ID - Apple Support

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Trouble-shooting if needed:

If you can't open the App Store or iTunes Store, buy content, or edit payment information - Apple Support

Check if any restrictions are set:

Manage App Store purchases, subscriptions, settings, and restrictions on iPhone – Apple Support

If you can’t download or update apps on your iPhone or iPad – Apple Support

If needed:

App Store Support Website

App Store - Official Apple Support

All the best :-)