Argument 1 must be of the type string or null, object given

Question

I get this error. https://i.sstatic.net/2CNld.jpg I haven't changed much either since it worked, mainly the html, weird. https://github.com/cubesacube/project

Answer 1

The problem was in your CustomerController at line 20:

public function store() {
    Customer::create($this -> validatedData());
    return redirect(); //this is the problem
}

redirect() needs route name or url path like redirect('/home') or redirect('login')

Reference HTTP Redirect