SharePoint Online: Fix "The collection has not been initialized. It has not been requested or the request has not been executed. It may need to be explicitly requested" Error in PowerShell

Error: The collection has not been initialized. It has not been requested or the request has not been executed. It may need to be explicitly requested.

Root cause:
You must load the object before you are trying retrieve its properties!

Solution: Here is how the problem can be resolved

#Load SharePoint CSOM Assemblies
Add-Type -Path "C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\16\ISAPI\Microsoft.SharePoint.Client.dll"
Add-Type -Path "C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\16\ISAPI\Microsoft.SharePoint.Client.Runtime.dll"
  
#Parameters
$SiteURL = "https://crescenttech.sharepoint.com"
$UserName = "[email protected]"
$Password = "Password goes here"
$SecurePassword= $Password | ConvertTo-SecureString -AsPlainText -Force
 
#Setup the Context
$Ctx = New-Object Microsoft.SharePoint.Client.ClientContext($SiteURL)
$Ctx.Credentials = New-Object Microsoft.SharePoint.Client.SharePointOnlineCredentials($UserName, $SecurePassword)
 
#Get All Fields from the List
$List = $Ctx.Web.Lists.GetByTitle("Documents")

#Load List Fields collection
$Ctx.Load($List.Fields)
$Ctx.ExecuteQuery()

ForEach($Field in $List.Fields)
{
    Write-host $Field.Title
}

Please note, if you skip the Line # 19 and 20, you would end up with the error The collection has not been initialized!