dakeledh 1- The download is official from the web site of osticket
Really? Because the instructions that you posted in your thread clearly show you getting the files from github.
dakeledh 3-At the moment to access in the page stay in white
So you are saying that you get a white page with nothing on it?
That error was one that people encountered when they were running PHP 7 with a version of osTicket before the latest release 1.11.
I find your thread confusing and all over the place. Lets's start over.
Please post a screen shot of what you are seeing.
Please confirm the versions of osticket, version of php, the webserver and version.
Also are you running SELinux?