Plugin not working on a shared server with Cloudflare simple SSL

Hi,
I’m trying to use the plugin to generate a static version of the site to be served to my visitors.
At the moment, after having installed, configured, and tested the configuration with the diagnostic tool (everything went well), the script does not generate anything, the destination directory is empty, and I cannot find any error message.
My guess is that since WordPress is running in a Virtual Host using Cloudflare’s simple SSL the plugin gets confused while trying to fetch URLs.
Here is an extract from the log:

`[2017-07-10 14:27:11] [class-ss-plugin.php:232] Received request to start generating a static archive
[2017-07-10 14:27:11] [class-ss-archive-creation-job.php:61] Starting a job; no job is presently running
[2017-07-10 14:27:11] [class-ss-archive-creation-job.php:62] Here’s our task list: setup, fetch_urls, transfer_files_locally, wrapup
[2017-07-10 14:27:11] [class-ss-archive-creation-job.php:76] Pushing first task to queue: setup
[2017-07-10 14:27:11] [class-ss-archive-creation-job.php:105] Current task: setup
[2017-07-10 14:27:11] [class-ss-archive-creation-job.php:120] Performing task: setup
[2017-07-10 14:27:11] [class-ss-task.php:38] Status message: [setup] Setting up
[2017-07-10 14:27:11] [class-ss-setup-task.php:23] Creating archive directory: /tmp/simply-static-1-1499696831/
[2017-07-10 14:27:11] [class-ss-setup-task.php:57] Adding origin URL to queue: https://spiceoddity.com/
[2017-07-10 14:27:11] [class-ss-setup-task.php:68] Adding additional URL to queue: https://spiceoddity.com/wp-includes/js/wp-emoji-release.min.js
[2017-07-10 14:27:11] [class-ss-setup-task.php:99] Adding files from directory: /var/www/spiceoddity.com/spiceoddity.com/wp-content/uploads/

(… long list of images…)

[2017-07-10 14:27:13] [class-ss-archive-creation-job.php:142] We’ve found our next task: fetch_urls
[2017-07-10 14:27:13] [class-ss-archive-creation-job.php:105] Current task: fetch_urls
[2017-07-10 14:27:13] [class-ss-archive-creation-job.php:120] Performing task: fetch_urls
[2017-07-10 14:27:13] [class-ss-fetch-urls-task.php:37] Total pages: ; Pages remaining:
[2017-07-10 14:27:13] [class-ss-task.php:38] Status message: [fetch_urls] Fetched 0 of 0 pages/files
[2017-07-10 14:27:13] [class-ss-archive-creation-job.php:142] We’ve found our next task: transfer_files_locally
[2017-07-10 14:27:13] [class-ss-archive-creation-job.php:105] Current task: transfer_files_locally
[2017-07-10 14:27:13] [class-ss-archive-creation-job.php:120] Performing task: transfer_files_locally
[2017-07-10 14:27:13] [class-ss-transfer-files-locally-task.php:64] Total pages: ; Pages remaining: 0
[2017-07-10 14:27:13] [class-ss-task.php:38] Status message: [destination_url] Destination URL: <a href=”https://static.spiceoddity.com/&#8221; target=”_blank”>https://static.spiceoddity.com/</a&gt;
[2017-07-10 14:27:13] [class-ss-archive-creation-job.php:142] We’ve found our next task: wrapup
[2017-07-10 14:27:13] [class-ss-archive-creation-job.php:105] Current task: wrapup
[2017-07-10 14:27:13] [class-ss-archive-creation-job.php:120] Performing task: wrapup
[2017-07-10 14:27:13] [class-ss-wrapup-task.php:13] Deleting temporary files
[2017-07-10 14:27:13] [class-ss-task.php:38] Status message: [wrapup] Wrapping up
[2017-07-10 14:27:13] [class-ss-archive-creation-job.php:138] This task is done and there are no more tasks, time to complete the job
[2017-07-10 14:27:13] [class-ss-archive-creation-job.php:161] Completing the job
[2017-07-10 14:27:13] [class-ss-archive-creation-job.php:271] Status message: [done] Done! Finished in 00:00:02`

Did anyone face the same problem, and has anybody been able to solve it?
Thanks in advance,
S.