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Problem with upgrading the php version on the server.

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I run a store on Prestashop and use the "pos-vonia 2 ver. 1.0" template.

The server is set to php 5.6. I wanted to change to a higher version of 7.0

or 7.1, but this proved impossible.

Unable to get to the site because of an HTTP 500 error message

and information that the server cannot handle this request.

Hosting claims that everything is ok on their side

One of the programmers stated after entering the admin panel that the fault was on the side


I wrote to support, but it's still quiet.

Have any of you encountered such a problem and been able to solve it?

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Turn on debug mode. 

In PHP select extension

fileinfo, intl, zip, maybe ioncube_loader, mbstring, mcrypt, gd 

if the problem disappears disable debug mode.

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