How do I install a smalot/PDF parser on a plesk server because it’s not working when I put the folder on plesk server in laravel?

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Laravel

I have installed the Smalot/PdfParser on local server it's working good but when I transferred the library on my Plesk server then its showing that Smalot/PdfParser/Parser not found

I am trying to connect the library on controller

using this method new \Smalot\PdfParser\Parser();

and getting the output is production. ERROR: Class 'src\Smalot\PdfParser\Parser' not found.

What I have tried:

I have tried this method new \Smalot\PdfParser\Parser();

and getting the output is production. ERROR: Class 'src\Smalot\PdfParser\Parser' not found.