Unknown error with Zenfolio

What was the user name you were providing?

I think what is happening is that your password protection is blocking this. E.g. even if I access https://laviedenanie.zenfolio.com/f642239177 I see nothing, and correspondingly, when I try to run an API call (http://api.zenfolio.com/api/1.8/zfapi.asmx?op=LoadGroupHierarchy) with your loginName, laviedenanie, I get no results.

Have you tried authentication under Photonic → Authentication → Zenfolio?

When I try authentification in the Photonic/Authentification/Zenfolio I have the message : Failed to get challenge. I have to put the password I defined to access ma galleries right ?

You will need to put in your login password there, not the password you use to access your galleries. Zenfolio’s authentication works differently from the other providers. Flickr and SmugMug use OAuth 1.0 and Google and Instagram use OAuth 2.0, but Zenfolio has a custom authentication protocol. For OAuth you don’t need to enter your password in a third-party app, but here you require the password the first time. The password is exchanged for a “challenge”, which then serves to do future verification.

I have a response with the http://api.zenfolio.com/api/1.8/zfapi.asmx?op=LoadGroupHierarchy

True, but the response doesn’t have any usable information – it is not showing your photosets. E.g. try out with my login, “sayontan”. You will see my photosets being displayed in the response.

I did notice one thing: your error message says “Failed to get challenge”, which comes only when Zenfolio returns a blank authentication response. This should not be happening unless something fundamental is not working on your site.

Do you know if cURL is allowed on your website? You might need to check with your hosting provider.

Sorry how can I check that ?

There are a few ways to do this:

1. Open a support ticket with your hosting provider and ask them if cURL is enabled for your website. They can answer right away.
2. If you want you can check this yourself by editing one of your theme files. You can generally put this in your footer.php file, right before the call to wp_footer();. Assume that in your footer.php file you have a line:
   wp_footer();
   Before this line, put in:
   echo '<!-- Curl: '.extension_loaded('curl').'-->';
   If you save the file and reload any page on your website, then “View Source” (Ctrl + U in Chrome), you will see a line in the footer saying <!-- Curl: followed by either nothing, or 1. If you have 1 then cURL is enabled.
3. Instead of modifying your theme’s file it is advisable to do the above in a child theme.

But if you are not sure, the best option is to wait for your hosting provider to respond to your ticket.

Interesting – so cURL is enabled, but you are still receiving a blank response.

I am running out of ideas at the moment, so let us try this: go to Photonic → Settings → Generic Options → Advanced →
Turn off SSL verification in calls and select that option.

Wow … interesting. Is this a local site? It is generally advisable to NOT turn this off on a public website, hence I am curious about how your configuration is set up (for a local site it is OK).

OK – I am marking this resolved.