NamelessMC

Hello, I'm having an issue with the installation of NamelessMC.

Scenario:
Using a dedicated server i had the support from my provider install a webserver on the dedicated machine im renting.
The support then installed NamelessMC for me.

Issue:
When i went over to my website eg. "mydomain.com" i reached the NamelessMC installation page.
However, when i try to click "New Installation" i got a "unable to detect session" error.
I then went to NamelessMC discord for help where i was told to first clear my cache which i did.
Then i was told to replace core/installation/views/installer.view.php with the content from this link

I had the support team from my service provider make the changes and the issue still persisted.
Then i was told to replace the file once again with the code from this link
After i had support once again make the changes it just turned the "New Installation" and the "Upgrading From V1" buttons into page refresh buttons -> meaning when i clicked the buttons nothing happened other than a blink like when you hit the page refresh button