Why are my Outlook mail buttons either missing or not working?

[Rumplestiltskin]

Outlook was operating perfectly. I came to it today and the send recieve
button was missing, and if I try and use reply button the assistant tells you
the operation failed. What has happened?

 

[Roady [MVP]]

Hard to say without any configuration information.
Verify you still have an account configured in Outlook and that you have
activated your copy of Outlook.