Module development and code questions

How to render a view of type block in a theme template using twig teak module?

Used -drupal_view('view machine name','block machine name','node id')

Node id is being used as contextual filter.

Urgent help needed please

How to play videos in the site using drupal8?

Installed Video module , video.js player , placed libraries for zencoder-php , videojs player under sites.

Issues: Not able to download video_presets module and cannot find Video UI under configuration -media section. Stuck here. Urgent help needed.

Another other approach to play videos in the drupal site using colorbox and overlay combination would be appreciated.

Urgent help needed. Please.

Hi everyone,
I made a view with views data export contrib module, thants to I download a CSV file of some information. Well, I need to download this file, and save it into drupal filesystem, in particular into public file, or attach it to an email, for example. How can I do this?

Can I make this with Drupal controller?

Rendering a block using twig teak via twig template gives error:

This block is broken or missing. You may be missing content or you might need to enable the original module

Any suggestions to fix this error?

Tried to fix using 

https://www.drupal.org/project/recreate_block_content

But the issue is not fixed.

Requirements

Add a video library related to the chapters in a book and play them in the site

Steps followed

1. Using the book module created a hierarchy of the chapters in a node

2. Created a video content type and configured in the book module for the parent and childs

3. Created a view as a block and with the contextual filters and relationship displayed the list

Issues

1.

Unable to render the view via twig teak module (drupal_view) and related twig template 

Hello All,

I'm very new in Drupal 8 development, I have created a basic webform and now i want to add custom css to make it more attractive so how can i add? Any lead will be appreciated..