Sage 9 Install - Type Error

By the way: This runtime error indicates that the illuminate\view expects an older laravel release. The array_except method was removed from the laravel/framework package (moved to laravel/helpers).

As the error is caused inside a cached (rendered) blade view (uploaded with the site), you may want to try to clean the Blade cache folder to regenerate those cached/rendered Blade view PHP files and see whether this fixes you problem:

With some luck this should fix the runtime issue.