BUGFIX Return an error array with msg and not it's trowing php error

Merge pull request #6 from velkov/main

phpmd error fixed

Unit tests and cleanups

Merge pull request #4 from forward-force/feature/code-quality

Feature/code quality

Updated to php 7.4

• Updated guzzle
• Updated to php 7.4

Return empty response as json

• Syntax type fixes

Initial release

Merge pull request #1 from startusin/main

Init core