Installation problems with OCS

Description of issue or problem I’m having:
And the other two subdomains are reporting the following error message:

  PHP Fatal error:  Cannot use 'String' as class name as it is reserved in /home/fisddorg/ on line 57
PHP Deprecated:  Methods with the same name as their class will not be constructors in a future version of PHP; Application has a deprecated constructor in /home/fisddorg/ on line 30

Steps I took leading up to the issue:

What I tried to resolve the issue:

Application Version - e.g., OJS 3.1.2:

Additional information, such as screenshots and error log messages if applicable:

Hello @Namig_Isazade,

Is this the same issue as you reported here: Installation problems ?

PKP Team

We have problem with OHS installation.