PHP 7.2 compatibility
No, I have not done any customization.
Please ignore this, this is the problem of tool you use to check it. This tool has a bug here, it doesn't recognize that the __constructor() is the same reserved function. Please contact that tool support and they'll verify this bug. Don't forget to show the screenshot provided by Astghik above, it shows that the code is correct and the problem checker tool is incorrect.