What is that String thing and what to do?

“Fatal error: Cannot use Resource\ative\String as String because ‘String’ is a special class name in /home/vol4_4/epizy.com/epiz_20372264/htdocs/classes/class_initializer.php on line 4”

That happenend after i installed the script. I tried to edit the folder but stills…
So what to do?

Oh i fixed it alone by downgrading the PHP version.

String is a reserved keyword in PHP 7. Downgrading to PHP 5.6 is a possible workaround, but if your script doesn’t support PHP 7 even 18 months after the new PHP version has been released, I would be worried.