Drupal 8.x

I installed IMCE module in order that I can upload svg file in CKEditor.

But I still got the error like only .png, .jpg, etc are acceptable.

I checked in Configuration > Media > IMCE setting, in Admin Profile, Allowed file extensions is set up *.

I have created a custom block and placed in primary menu block. Under Category, it says "Custom" and not "menu" see image below.

I have installed "Menu Block module" and activated it but there is no option to make it work. 

now I can't bring or select menu.  Please help. 

I need to add list of links to internal/external url, email and phone number in any order. I think link field provided by core is the way do it however link module does not allow adding email and telephone. It throw validation error "Manually entered paths should start with one of the following characters: / ? #"

I think it should allow email and phone number as it is wrapper in a tag.

What's the best way to achieve it?

Hi

I have sent two examples here

1) In the first examples there are no explanatory words about what you will find in the subpage after clicking on the "Cars" link.

I've Ubuntu 20.04.1 LTS  with with Drupal 8.9.10 version.

All 3 sites are giving same error:

The website encountered an unexpected error. Please try again later.