We have a kind of strange problem.
We used to have a quite simple Webb structure with just One Proxy -> One Varnish Frontend - > One Drupal Webb server and with One Memcache on the same server. Since this was not an ideal solution we decided to expand.
The new solution recommended by many was a loadbalancer (f5) -> a cluster with 2 Vanish front servers-> a cluster of 2 Drupal servers (Memcache on each server) -> a cluster of 2 My Sql (Maria) Databases. We build it up, everything looked fine during test, but now we have run into problems.
I installed Drupal 8.5.3 on the webhoster's site which worked out fine (MySQL database installed autmatically). When I now try to login, I only see the plain text page. I can login, but there is still only the plain text page displayed.
I read a lot, googled too, but couldn't find anything that helped. I also checked the .htaccess file, it looks ok. I tried with different browsers (Firefox, chrome, IE) and on another laptop too. Always the same effect (not an error page, just plain text). It looks as if the CSS or format is missing.
I have uploaded my drupal website on server and i am receiving the below error on index.php, call to undefined function module_list() in require_once boostrap.inc
There is a situation that should be unacceptable to all drupal pros out there. I am currently transitioning from my Ubuntu 16..04 LAMP Server to a Bitnami 7.59 Drupalstack (because I am tired of fiddling with email servers on a development server) :P . Only to discover that Bitnami does NOT provide instructions / FAQ on how to install multiple Drupal apps onto a single Bitnami Drupal stack... However, they readily an instructional FAQ on how to add multiple Joomla Apps onto a single Bitnami Joomla stack...
I understand that composer is apparently (and probably factually) better for site management. However, here's the thing. I have a shared host (on which I cannot run composer). On a dedicated I would, but I'm on a shared. So any composer command must be executed locally. Thus I now need to download the files and databases locally and install everything. Sometimes the update/install works perfect, sometimes I need to fiddle with the vendor and .lock files.