HTTP 500 Internal Server Error

[ramesh bhandary]

website www.ateeqicpas. com is throwing the following error
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This error (HTTP 500 Internal Server Error) means that the website you are visiting had a server problem which prevented the webpage from displaying.

For more information about HTTP errors, see Help.
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Can you please guide me with correct reason for this error..? It was working fine for the past 4 years

[Frinavale]

Check the Windows Event Logs on the computer that is hosting the web server to find out what is causing the problem.

-Frinny