How to wait for a button to continue

Hello, I am new to TestComplete and scripting, please forgive me asking stupid questions.

 

I have a test that is going to click on a button on a web page, which will take me to the next page, and I will need to click on another button on the second page to continue the test. However, if I just script 2 click actions, it will perform the first click, and error out on the second click saying because the object not exist, so I guess it may need to take a few seconds to load the second button, so I used waitproperty method, but it still don't work, I can see the button is showing on the page and enabled, but the waitproperty method just keep waiting and waiting and then times out.

 

Here are my VBscripts, can anyone please help me out?

 

Sub test

Aliases.browser.WebStore_BillingInformation.ContinueButton.Click
If Aliases.browser.WebStore_BillingInformation.ProceedWithOrder.WaitProperty("Enable", True, 20000) Then
Aliases.browser.WebStore_BillingInformation.ProceedWithOrder.Click
Else
Log.Message "Button Not Found"
End If

End Sub

Thanks