you need to contact with your admin/hosting provider because as you can see on http://pasteboard.co/eUFkUenCp.png there is internal server error related to your hosting. It's probably because of the server limits but more details about it would be able to give you your admin.
So we have no idea what's the reason then because we have this error in console and also if you will open your site in HTML mode (CTRL+U) you will see that the content is just cut. It means, your server is unable to load whole site because of the limits on server end.
You get the error below in the error log /home/adweld/public_html/error_log
PHP Fatal error: Call to undefined function mfn_post_navigation() in /home/adweld/public_html/wp-content/themes/adweld-child/includes/content-single-portfolio.php on line 58
There is no featured image on this page, only the images for the related portfolios, but where is the featured image for the portfolio item I clicked on?
If you look at http://pasteboard.co/3prnD2qKU.png you see that the code responsible for the image is in the right place but it's empty. It means that the problem must be related with your extra plugins or child-theme itself. Just switch to parent theme and check if the image appear.
I have to say I am very disappointed with the level of support from Betheme. This is a theme we have used repeatedly for our clients. The response time is great, but it just feels like only simple fixes that are obvious are resolved. Anything that is an issue that is not common just gets fobbed off.
Such a shame as the theme is great, but a little more proactivity on the customer support would be greatly appreciated as this issue has delayed our whole go-live by two weeks.
We are sorry but we can not agree with you unfortunately. The issue you had wasn't related with theme itself but like we wrote above with extra plugins or child theme itself. Please notice that files customization (like modifications in child theme) are not included and this was clearly explained in Item Support Policy.
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you need to contact with your admin/hosting provider because as you can see on http://pasteboard.co/eUFkUenCp.png there is internal server error related to your hosting. It's probably because of the server limits but more details about it would be able to give you your admin.
http://www.adweld.fertilefrog.co.uk/equipment-hire/150-petrol-welder-generator-3/
You get the error below in the error log /home/adweld/public_html/error_log
PHP Fatal error: Call to undefined function mfn_post_navigation() in /home/adweld/public_html/wp-content/themes/adweld-child/includes/content-single-portfolio.php on line 58
mfn_post_navigation_header()