Toastr Working Kinda

This is working and uploading the image. It is sending the toastr message if successful. Where I am running into trouble is when I try to upload an image not listed in mimes: such as webp . I am trying to see if the error message works. It goes back to the upload page but no toastr message. What am I missing?

 public function update(Request $request, $id)
    {
        
        $update = User::find($id);
    
       
        $this->validate($request, [
            'name' => 'max:255',
            'phone' => 'required|string|max:255',
            'email' => 'required|email',     
            'image' => 'image|mimes:jpg,jpeg,png,gif,svg|max:2048',
        ]);


        if($request->hasFile('image'))
        {
           
            $destination = 'backend/images/profile/'.$update->image;
            if(File::exists($destination)){
                
                File::delete($destination);
            }
            $image = $request->file('image');
            $filename = time() .'.'.$image->getClientOriginalExtension();
            Image::make($image)->save(public_path('backend/images/profile/'.$filename));
            $update->image = $filename;
       
        }
        $update-> update([

        'name' => $request->name,
        'phone' => $request->phone,
        'email' => $request->email,

    ]);
    
    if ($update instanceof User) {
        // toastr()->success('Profile has been saved successfully!');
        toastr()->success('Profile Data Updated Successfully');

        return redirect()->route('admin.profile.view');
    } else{

    toastr()->warning('An error has occurred please try again later.');

    return back();
}
    }