Cannot run SAP after license is installed -- somebody help ......

We just installed license in SAP B.One server. After installation, the 30-day limit is removed. However, after installed the license, we cannot run any modules e.g. Purchased Order, Invoice, etc....

When we click

Click Purchase Order we get message:

"You are not licensed to open form [142] Invoice"

Click Sales Order we get message:

"You are not licensed to open form [139] Invoice"

Upon boot up, I see in the bottom screen some sort of error message, but it went so fast and I cannot read it. I believed it is something like "You are not licensed to open..."

1. What is happening and how to solve this?

2. Supposed it were working; How long will the license expire? Is there any "never-expired license" in SAP B1?