Installation v2.16.2

Your software
My Mautic version is: 2.16.2
My PHP version is: 7.1

Your problem
My problem is:

The site is currently offline due to encountering an error. If the problem persists, please contact the system administrator.

System administrators, check server logs for errors.

These errors are showing in the log:

Steps I have tried to fix the problem:

Nothing!! This is the first time I will be using mautic. I tried installing 3.x but it also failed due to SQL version.

I don’t know anything about programming. I just followed Youtube videos for Installation.

start from the beginning and follow this: https://www.linuxbabe.com/ubuntu/install-mautic-self-hosted-email-marketing-platform-ubuntu-18-04

Fail proof.

Firstly, thank you for responding my query!!

I am not able to continue after “Mautic Installation - Administrative User”.

Every time I do so it gives me this error" The site is currently offline due to encountering an error. If the problem persists, please contact the system administrator."

Are you running Linux? If yes, what distro?