Drupal 8.x

I wish to upgrade modules to new version. Specifically Slick Carousel 8.x-1.2 to 8.x-2.1 and Google analytics 8.x-2.4 to 8.x-3.0 however I get the message "already installed". My hosting service provider does not allow ssh. I am using Drupal 8.8.4.

i am looking at 

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

to encrypt several fields on a content type. 

I am using drupal 8.8.4   

i can see from the doc ( in the drupal 7 section there is nothing about it in drupal 8 ) 

that Since the field data is encrypted these field values will not work with Views Filters, regular, exposed or contextual

I get i can not use the field as a filter but can an encrypted field be displayed IN a view. 

I want to change the date format of the fullcalendar. the default date was the drupal default date. I tried to change date format of "start date" field in view  to (F j,Y | H:i) but the popup in calendar still show the default date format.

Hi

I am on Drupal 8 and I have a problem with the email address of the site. It doesn't work... I tried several tests.

First with "contact" - The contact message is well send back to the author but not to the owner... If I put some others addressees separated by comma, that's ok but not the base address of the site !!

Second with "Add a user" - If somebody ask to be registered, he is well registered but the owner of the site (the base address of the site) doesn't be advised !! So, the demand cannot be validate and the asker doesn't receive the end of the procedure.

I want to change the date format of the fullcalendar. the default date was the drupal default date. I tried to change date format of "start date" field in view  to (F j,Y | H:i) but the popup in calendar still show the default date format.

I want to change hreflang="en" to hreflang="ro" globally?

How can I do this in using mycustomtheme.theme.THEME file?