Drupal 8.x

After upgrade 8.3.7 => 8.4.4 I noticed the following:

If I go Structure|Content Types and choose whatever content type to be edited, i.e. I put mouse on the Edit option of the drop down menu, I can see that it points to:

http://mywebsite.com/admin/structure/types/manage/article

When I click on it, the browser is redirected to:

http://mywebsite.com/core/install.php

and I am getting a message:

I need to access the Add General Section Block page in a iFrame from Java webapp. The intent is to add a block or a page from Java web app. Instead of writing to the drupal tables myself in java, I was thinking to open a iFrame in java webapp and point the iFrame to drupal add block page and add it this way. In this approach, I won't have to write the code to insert data in drupal database which is very convoluted. I just need to add the drupal block in java by displaying drupal Add block page in iFrame and drupal would do the rest to insert into the tables. 

In Drupal 8, how would one retrieve a taxonomy by path/alias? The loadProperties method neither takes "path" or "alias"

i.e. the below throws error

      $terms = \Drupal::entityTypeManager()->getStorage('taxonomy_term')->loadByProperties(
        [
          'path' => $result
        ]);

Thanks ~

Hi everyone,  is for a long time I try install D8 on a 1and1 share server. But never can do it. Is something I lost, maybe is no possible? 

I still try to install D8 with the 1and1 app center, the installation work for one week. Then start show error 500, UTC (Europa/Berlin) .... 

I will love try the D8, please some one can give a help or info to digg. Thanks!!!