Drupal 8.x

This error occurred after upgrading from 8.5.5 to 8.5.6 then to 8.6.1. 

Can someone please advise how to resolve this issue?
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Mismatched entity and/or field definitions
The following changes were detected in the entity type and field definitions

Taxonomy term 

* The taxonomy term entity type needs to be updated.

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I'm building a Drupal 8 site for a client, who has specifically requested their homepage slideshow have a Fade transition from one slide to the next. I've searched Drupal.org, I've searched Google, and everything I'm finding seems to be old and outdated information. I find sliders, but they don't have the fade transition, or I find something with a fade transition, but for one reason or another, it won't work with Drupal 8. Can anybody point me towards a Slideshow that:
 

Hi,

I am on Drupal 8.6.1.

I have a view block: 
block 1
Which does as it is meant to do - which is return the content of a single field, BUT, not every instance will have a result:

block 1: NO RESULTS BEHAVIOR
Global: View area (Global: View area) -> block 2

block 2 
is almost the same as block 1, but has another filter and does exactly what it is meant to do - and provides the correct response to the no results in the block 1.
The field also has some no results text

I think I maded some progress since the last time I posted, but I really having problems with my php set up.

When running the website in phpstorm, this is the error I get:

I need to integrate three contents created/built in different content types in one view

content 1

Transportation created by using transportation content type

content 2

Destination created by using destination content type. URL of this content is node/xxx

content 3

Accommodation created by using accommodation content type

The idea is that when I click on the content 2 teaser, I would like to automatically integrate the respective transportation and accommodation (content 1 and 3).

I'm plagued by an error that occurs only in a couple of content types:

Drupal\Component\Plugin\Exception\PluginNotFoundException: The "facebook" plugin does not exist. in Drupal\Core\Plugin\DefaultPluginManager->doGetDefinition() (line 52 of /home2/bscottho/public_html/bshd8/web/core/lib/Drupal/Component/Plugin/Discovery/DiscoveryTrait.php).