Frederic Serva

Exactly what I was going to say…

Making my WordPress plugins require PHP 5.4

This is a very good read ??

Then check your PHP version…
The PHP version of your server must be 5.4 or higher

I’m closing this “issue”

I know it’s not a theme issue or a conflict with another plugin.
It’s a php syntax problem.

I released new version of the plugin.
Update and let me know…

First, did you flush your rewrite rules? (Visit “Settings > Permalinks” in your WordPress admin)

2nd, Correct path?
Go to Portfolio > Projects Category, then hover one of your category name, then click View.

Code for calling archives’ page & single project is the same.
So, you should have the same Fatal error: Using $this when not in object context in if trying to access both templates.

If not, let me know.
I’ve tested this plugin with a lot of themes and nothing went wrong…

Amazing…
Can you open the archive page?
Try https://yourdomain.com/work/SLUG_OF_ONE_OF_YOUR_PORTFOLIO_CATEGORY/

Sorry for the delay…

No, there is no popup.
The three templates (single page, archive page and portfolio) are just basic templates with some basic design and functionalities.