Drupal 8.x

Hello, I need a simple Drupal 8 shop with 2 main functions:

- Limited number of product items for my product (digital goods, no shipping)
- A wait list: Customers can put themselves on a wait list when the product is sold out. They can be informed when the product is available again.

Can you help? Best modules for this simple shop? Thank you.

I keep getting this message when I keep am trying to do different jobs such as put articles on my home page how do I fix this.

(
Fatal error: Namespace declaration statement has to be the very first statement in the script in /home/basketb0/public_html/autogas-scotland.com/vendor/symfony/validator/Constraints/RangeValidator.php on line 12)

i insert {{dump(items)}} to pager.html.twig to debug twig,then open product list page,turn page from first page to last page,some page can't display pager . and the debug dump 'items' print 'null'.why?

thanks very much.

I have version 8.3.4 installed and I am trying to update some modules.

When I get a system report or run the database update script I get the following error message:

Configuration directory: sync
The directory sites/default/files/config_QY4nIc4LMKUCYPUCo2Ka0p1gJSMs77w3b1ANX_Lco2F2OGjjuXC4pLnp3ws6D3QEef3UeXBMYw/sync does not exist.

Does anybody know of a method, plugin or other solution to set up wildcard redirects for Drupal 8? I know the Match Redirect module - but it hasn't been ported to D8 yet. I have quite a few taxonomy terms that are for backend use only - I've used pathauto to alias them all to redirect/[term:name] ... hoping I could then do a redirect to the home page, like so: /redirect/*

Or is there another way I could do this? (aside from .htaccess redirect?) I guess it's just morbid curiosity now.

Strangely, with each site creation using Acquia Dev Desktop (which is version 2 of Acquia Dev Desktop), it creates two folders within [Drupal-8-root]/sites.

"default", and "whatever.dd".