Invoice template issue

[Prateek Soni]

I tried to use a different invoice template with some changes on CSS. 

I have created the complete invoice template but it is not working. While printing the template or taking out the pdf it shows

Oops! An Error Occurred

The server returned a "500 Internal Server Error".

Something is broken

Please e-mail us at [email] and let us know what you were doing when this error occurred. We will fix it as soon as possible. Sorry for any inconvenience caused.

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I am attaching the template here. Please advise me where I am wrong. 

Thanks in advance.