Typed static property Filament\Resources\Pages\Page::$resource must not be accessed before...

I was trying to introduce a service to set up an additional field on the client profile called 'proxy_phone' and I introduced this error I cannot seem to get around. I am new to Filament and PHP. I will attach the PHP files I've modified in this process in hopes of isolating where I've introduced this error, as well as include the error and its stack trace as well.