Drupal 7.x

Every time a link is clicked this error comes up for all users. Calls out lines 488, 489, 490, and 491. (Navigation works fine). I dumped the code into Excel and it's 488 (blank) 489 (blank) and then 490 and 491 read:

I have a well running D7 sit at theorichel.nl. I want to upgrade to D8 and I understand that I should first create a D8 site without the data. Where do I do that? Should I ask my host for a new address and then delete the old site after miogration or can I install D8 somewhere in the folder tree that also contains my D7 site?

I am trying to add the same Stylesheet for all my Subdomains / Sub-sites....

All my Sub-sites (should) have the same CSS, and I am tired to run & update each of my 14 Sub-domains whenever I want to make a small change; and if I forget to run around them all, a big Chaos ensues, and I don't remember what I have updated and what not....

In Drupal 7 - I can do it only putting my stylesheet in a root folder and adding my Stylesheet as External Stylesheet, with Absolute URL - into Template.php file, as far as I understand?!

Hi,

@ /update.php, I see a message:

Cache Expiration - hook status    No expirable cache enabled
None of the enabled modules implements hook_expire_cache(). This means that expire.module will not be having any effect. You should enable a module implements this hook, like the Varnish module.

When I installed than activated Varnish module it broke my site with a white screen.

Is there a simpler method for resolving this message?

Thanks,

Steve

Hello,

I'm new here, started looking into Drupal to move away from Wordpress. 

I would like to migrate my website(s) over completely, but there are some things I'd like to see regarding a theme. This is an example of website that I've found which has a really clean and sharp look and it was built on Drupal. Can anyone here recommend a Drupal theme that would match it, or at least get as close as possible? I've looked up about 30-40 themes so far but couldn't find anything that's really close. 

Hi

looking for something very simple.

I want a yes/no result in a field, to show if current user is the author or not.

So if my user is viewing a node they wrote there will be a field which says, Author: yes. or Author: no.

Is this available or will I need to write some code?

Thanks