The error returned is not understandable when fail to create MySQL server

## Description
The step to produce and error log

PS C:\Users\azureuser> New-AzMySqlServer -Name mydemoserver -ResourceGroupName labrg783 -Sku GP_Gen5_2 -GeoRedundantBackup Enabled -Location westus -AdministratorUsername myadmin -AdministratorLoginPassword $Password

New-AzMySqlServer_Create: C:\Program Files\PowerShell\Modules\Az.MySql\0.1.0\custom\New-AzMySqlServer.ps1:218
Line |
218 | Az.MySql.internal\New-AzMySqlServer @PSBoundParameters
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| The requested resource of type 'MySQL.Server.PAL' with name 'mydemoserver' was not found.

�[91mNew-AzMySqlServer_Create: �[0mC:\Program Files\PowerShell\Modules\Az.MySql\0.1.0\custom\New-AzMySqlServer.ps1:218
�[96mLine |
�[96m 218 | �[0m �[96mAz.MySql.internal\New-AzMySqlServer @PSBoundParameters�[0m
�[96m | �[91m ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
�[91m�[96m | �[91mThe requested resource of type 'MySQL.Server.PAL' with name 'mydemoserver' was not found.
�[0m

## Cost