OJS does not open PDF

Describe the issue or problem
My OJS anytime I create a PDF Galley, the PDF does not open, it throws error 500 internal server error

Steps I took leading up to the issue
when I click on the HTML button of the articles, it opens that of HTML and download it but PDF own show error below in the attachment

What application are you using?
Im using, OJS on my localhost server

Additional information
Please add any screenshots, logs or other information we can use to investigate this problem.

Hi @arubiewe,

For HTTP 500 errors and other similar errors, it is best to check your PHP error logs and report on errors found there.

PKP Team

Make sure open PHP extension’s such as mbstring fileinfo xsl

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