Add troubleshooting section to readme

[mtvbrianking]

Steps

• Clear application cache

php artisan config:clear

• Delete existing access token(s) from the database

\Bmatovu\MtnMomo\Models\Token::truncate();

• Confirm package configuration

config('mtn-momo')

* Refer to the GoLive wiki when migrating from sandbox to live environment

[oseip]

I dont have any current access tokens in the database to delete..
Please help me out. How do i do that

[mtvbrianking]

I guided you from issue #77

[oseip]

This is my log file...
I dont understand step two

[2022-11-08 11:43:28] local.ERROR: HTTP_OUT_ULFvFHTFJa [Request] POST /v1_0/apiuser
[2022-11-08 11:43:28] local.ERROR: HTTP_OUT_ULFvFHTFJa [Request] [Headers]
POST /v1_0/apiuser HTTP/1.1
Accept: application/json
Ocp-Apim-Subscription-Key: 9ad3b5f8ce644ae8f8a5a8de30023e1a9
User-Agent: GuzzleHttp/7
Content-Type: application/json
Host: sandbox.momodeveloper.mtn.com
X-Reference-Id: f117c9e9-4f27-4c74-a591-1ee513b6e361
[2022-11-08 11:43:28] local.ERROR: HTTP_OUT_ULFvFHTFJa [Request] [Body] {"providerCallbackHost":"localhost"}
[2022-11-08 11:43:28] local.ERROR: HTTP_OUT_ULFvFHTFJa [Response] HTTP/1.1 401 Access Denied Size: 143
[2022-11-08 11:43:28] local.ERROR: HTTP_OUT_ULFvFHTFJa [Response] [Headers]
HTTP/1.1 401 Access Denied
Content-Length: 143
Content-Type: application/json
Request-Context: appId=cid-v1:e996501c-e721-4ac1-97ff-dc6887b85e8c
WWW-Authenticate: AzureApiManagementKey realm="https://sandbox.momodeveloper.mtn.com/",name="Ocp-Apim-Subscription-Key",type="header"
Date: Tue, 08 Nov 2022 11:43:22 GMT

[mtvbrianking]

Confirm your subscription keys

https://github.com/mtvbrianking/laravel-mtn-momo#prerequisites

[oseip]

Subscription Key has been confirmed
Still getting the same error
Please Explain Step two

Ocp-Apim-Subscription-Key: 9ad3b5f8ce644e8f8a5a8de30023e1a9