Answer: close the program and reopen it.
Explanation: This is one of the 5 common problems in a computer. When a program wont load, Try closing and reopening the program.
Reboot the computer.
Check for known issues on the web or updates to the software.
Use Task Manager (Ctrl+Alt+DEL) if program is non-responsive to "end task."
Web-based application - this is a special kind of applications that operate in the global Internet via HTTP. The user interacts with the program, usually carried out through the browser.