My back-end does not work on all devices

[abdu_idres]

I built an application and it worked well with the Api, but recently the server was hacked and a problem arose that the http requst in application stopped on some devices and works well on some devices. I have a log that stores problems from users’ devices in Firebase and the problem that appears:
ClientException with SocketException: Failed host lookup: ‘kolshiy.sa’ (OS Error: nodename nor servname provided, or not known, errno = 8), uri=https://kolshiy.sa/v1/kolshy/api_get/city/showAllCity.php
Tools used flutter for front end and http for connection and back-end php pure

[samliew]

Hi @abdu, Welcome to the Make community!

It appears that your question does not have anything to do with Make.com.

I would suggest completing the Make Academy to get started. If you need specific assistance it’s easier to help you then. Otherwise, you can also hire a professional by posting a request in the Hire a Pro category.

Here are some useful links and guides you can use to learn more on how to use the Make platform, apps, and app modules. I found these useful when I was learning Make, and hope they might benefit you too —

Getting Started

• Help Centre | Tutorials – Make “Manual”
• Make Academy – Basics 101: Learn Make and get certified

Help Centre Basics

• Mapping – What is mapping? What can I map?
• Mapping with arrays – How to map items in an array
• Aggregate an array for mapping complex fields
• Date Format: tokens for parseDate | tokens for formatDate
• HTTP modules – Make a request, Get (download) a file
• Webhooks – Error Handling, Responding to webhooks

Articles & Videos

• Router Magic Formula - YouTube
• Error Handlers in Make - YouTube playlist
• Getting started with OpenAI - How to setup and use OpenAI (ChatGPT) in Make
• How to use Regex in Make - How to use pattern matching to extract the text you want
• Webhooks – Make Academy – tutorial on how to use Webhooks

Hope this helps!

— @samliew

P.S.: Investing some effort into the Make Academy will save you lots of time and frustration using Make.