Laravel Maatwebsite is not working in Php7.2

I have a project running in the AWS Server EC2 instance, The project is made with Laravel 5.5.* and I'm using the Maatwebsite package to generate reports. The server is running php7.2.2 . After I deployed the project to the EC2 instance and trying to generate reports, I got this problem in my browser

I found same questions and same answers here in SO. I tried to downgrade my php version to 7.1 then to 7.0, still the problem is occuring. I tried also to do the permission access, chown, and etc. But non of them works. Does anyone having this problem also?

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