pauline2019

luckily I know someone who knows WordPress better !

Okay, if you leave me long enough on my own to plough it through I am actually learning! I found the tab Healt check… and this is the diagnosis: (only the ones with errors )

Theme Versions

Your site has 6 installed themes, and they are all up to date.
Your site has 4 inactive themes, other than twentynineteen, the default WordPress theme, and Scrawl, your active theme. It is recommended to remove any unused themes to enhance your sites security.

PHP Version 7.2.14
Database Server version 10.1.37-MariaDB-1~jessie
PHP Extensions

The optional module, libsodium, is not installer, or has been disabled.
The optional module, imagick, is not installer, or has been disabled.
The required module, mcrypt, is not installer, or has been disabled.

MySQL utf8mb4 support Your MariaDB version supports utf8mb4
HTTPS status You are accessing this website using HTTPS, but your WordPress Address is not set up to use HTTPS by default.

I can uninstall the themes, but how do I correct the others?

okay, I have managed to get into troubleshooting mode and change the theme (Scrawl), but still no success.
I do not understand how to test REST API

And I have already asked Transip. they say there is no problem on their end

I have installed two plugins to try and disable REST API and activated them but no success
I do not know what code snippets are .
I downloaded the Health check but it does not seem to install. How do I do that?
Sorry to keep bothering you, but as mentioned before, I dont know that much about the technical site of have a website

Hello
Yes the website is the one with the box in the back (It is a picture of my AGA cooker)
There is only the error message: Publishing failed or Updating failed.
And there are no drafts saved in my posts list.