object not found laravel 5.2 run on php 7.2 windows 10

Recently, I've been downloading laravel project on github. after I tried to run the file on my localhost, I found error message on my browser. which look like this. on the first page, I didnt find any error message. but when I clicked on the menu (register, logo=in, services, any menus) I found this error. enter image description here

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