UserForms Runtime error 91

I am running three userforms.
First one is for UnitModel.
After pressing enter in the UnitModelBox, it is hidden and ProvForm is shown.

After selecting a province, ProvForm is hidden and InsertDataForm is shown.

In InsertDataForm, I have three command buttons. NEW PROVINCE to show ProvForm, NEW UNIT to show UnitModelBox and DONE to hide InsertDataForm.

My problem is that I want to be able to unload all forms when clicking the Done button instead of hiding the InsertDataForm.

I tried many different scenarios but always keep getting a runtime error '91'

Then InsertDataForm.Show is highlighted in the ProvForm.

Why?

Would it not be easier to setup a single multi page UserForm?

Hmmmm. I have never tried multi page Userforms but I do like the sound of that.
Will give it a try.

Problem solved.

thanks everybody

thanks. that did the trick. I changed the showmodel property to false inside the done button.