I’m from Cluj, but Brasov or Durau are also great touristic locations. It might be easier to meet in a central location, but I’m sure it’s difficult to choose because we have so many great places
I’ve seen that the error appears on pages, not on the homepage.
This means that the permalinks structure is somehow corrupted (most probably you are using now custom permalinks). To fix it back:
step 0: if possible, backup your WP installation folder.
step 1: temporary disable all the plugins (important step)
step 2: in WordPress admin dashboard, go to Settings -> Permalinks
step 3: remember or note down somewhere what you have in the custom permalinks field: http://awesomescreenshot.com/0534epzk0c
step 4: temporary enable (switch to) the default permalink: http://awesomescreenshot.com/0f74epyi15 Click Save Changes button.
step 5: verify the website is working now (not everything, because the plugins are disabled, but the preg_match error should be gone)
step 6: switch back to the custom permalinks setting you had at step 3
step 7: enable back all the plugins
The error should be gone.
80-100 requests daily for one product? That seems a lot Have you thought of perhaps modifying your documentation and/or item description (to add more information)?
Use a security plugin like WordFence.
In its settings, configure it to block for 60 days the: more than 1 password-forgot attempts (admin still has access), more than 1 login failure, immediately lock out invalid usernames, etc
In general, set the most restrictive rules with the plugin options page.
This plugin will also help you set the rules in .htaccess file
With this plugin periodically make a full scan of your WordPress folder. The plugins can send you automatic emails if something suspicious is detected.
Periodically make a full scan of your website with sucuri dot net.
If you use a contact form, be sure you use at least a captcha field (there are plugins who do that).
Keep you WordPress core, theme and plugins always up-to-date.
Never use commercial plugins which are nulled from suspicious websites! This is important! They contain malware. Almost always!
Change your admin password periodically and be sure you use a strong password.
Make sure in your web hosting cPanel (or whatever you use) to not give the wrong folder and file access permissions (pay attention especially to public access). Here is a link that might help: http://codex.wordpress.org/Changing_File_Permissions
Recently, there were some vulnerabilities with some websites that were using the PHP mail function (if you are using it too, maybe you could use the SMTP mail instead)
These are the things I usually do with my clients setups. If anyone has other recommendations, please feel free to add to the list.
I don’t remember seeing somewhere that Skype would be forbidden. I think you can do this, but I don’t recommended you to It will be difficult for you to switch from Skype to writing code. And back. You’ll spend more time on Skype than on writing/developing new items.
Instead of Skype, you can record some videos and put links to them in the static documentation. A lot of theme authors do that, videos are allowed.
It’s an article written back in 2014, but it still can help you: http://marketblog.envato.com/author-resources/seo-best-practices-for-authors-on-the-envato-marketplaces/
I’m not sure, but, though, I think the billing address is only requested once (then it’s saved and buyers do not have to enter it again at the second checkout)
I think all the drops in sales are due to the general feeling you get as buyer reading all the stuff about VAT and taxes ans so on. (although, again, I saw that there are authors, most probably Elite authors, who do not experience this)
also shopping cart is not necessary, user will not purchase socks and shirts. Will buy a template instead.
The shopping cart was a very requested feature. There are customers who buy at once 20 templates, so the shopping cart is very useful.
And if I’m not mistaken, the billing address is requested at checkout only once, the first time.