Installing Drupal

I had version 7.44 running on my Drupal testbed Web site. I was using PHP version 5.4 and My SQL version 5.5.48-37.8.
When I got the notice that 7.50 was available, I performed the upgrade in the standard way (deleted all files and directories in the public_html directory except for the sites directory and then uploaded all the new files and directories except the sites directory).
I was getting 500 errors when I pulled the site up with my browser.

Hi guys,

Last week I got a dedicated server and prepared an openvz container to be ready for Drupal 8 (MySQL + Apache2 + PHP). The idea was 50 jailed users could access remotely and install Drupal 8 via Drush simultanously and browse their Drupal websites.

What happened was a bad user experience caused by server overload. Server specifications are: Debian 8 (openvz container), 12 GB RAM and 8 cores.

The funny thing is that similar configuration for Drupal 7 goes like a charm.

I have installed commerce kickstart 7 x 2.38 on my localhost wit xamp.
Now when i get to the page configure site in the installation proces , i get the following error message.
Error: Call to undefined function field_attach_load() in DrupalDefaultEntityController->attachLoad() (line 354 of C:\xampp\htdocs\commerce_kickstart-7.x-2.38\includes\entity.inc).
Can somebody help me with this?

I am in the process of setting up a copy of a running Drupal 7 site on my own Mac OS X El Capitan desktop.

I installed the current Mysql community 5.7.13; created the database; and granted all standard privileges on the db to the app user, 'ins_cms'

I can connect to mysql just fine from Bash command line... e.g. $ mysql -u ins_cms -p

I can issue other drush sql* commands from a Bash session just fine, e.g. $ drush sql-dump

When I try to load a dump file from the original site's db, I get this error, which is baffling all I consult:

I have read through articles for days. I have tried many instructions from many forums from many persons. I still cannot find a clear and concise step by step of anyone whom can explain how to install multiple drupal websites on one server. There are many persons saying they have successfully achieved the objective, but none that take the time to explain how. I want a current date (July, 2016) description of how to set this up. I have launched a bitnami drupal 8 virtual machine on ubuntu in Microsoft Azure.

I have put the files in the correct place in my host . When i try to install drupal commerce kickstart with my domain and /install.php i land on the welcome page where i have to agree and then hit Let's get started and from there i get an HTTP error500. The details of that error:

Fatal error: Class 'MessageViewsController' not found in /home/wendyvf180/domains/houtenletterborden.be/public_html/comkick/profiles/commerce_kickstart/modules/contrib/entity/views/entity.views.inc on line 30 E_ERROR Error in file »entity.views.inc« at line 30: Class 'MessageViewsController' not found