Adaptive images not being delivered

Hi guys

I’m trying to get images to adapt to mobile devices on my blog – ourtour.co.uk. I’ve installed your plug-in, activated it and saved the settings. The .htaccess file change reported as successful and the cache folder’s been created and I can see it being populated with files. However, the resized images are not being delivered to mobile devices, for example:

https://ourtour.co.uk/home/fistful-campers-mirleft-sidi-ifni/

I’ve tried disabling the Yoast SEO plug in, and setting the CDN support option, but neither have any effect. I’ve generated the debug info below in case it’s of use. Any help appreciated. Cheers, Jason

Adaptive Images Settings
Debug info
? PHP GD library is installed.
? Image cache directory has been created.
/home3/nc30part/public_html/home/wp-content/cache/adaptive-images => drwxr-xr-x
? Installation .htaccess file is setup OK.
/home3/nc30part/public_html/home/.htaccess => -rw-r–r–
? Adaptive images settings dump:
array(12) {
[“resolutions”]=>
array(3) {
[0]=>
int(1024)
[1]=>
int(640)
[2]=>
int(480)
}
[“landscape”]=>
bool(true)
[“hidpi”]=>
bool(true)
[“cdn-support”]=>
bool(true)
[“cache-directory”]=>
string(21) “cache/adaptive-images”
[“watched-directories”]=>
array(2) {
[0]=>
string(18) “wp-content/uploads”
[1]=>
string(17) “wp-content/themes”
}
[“jpeg-quality”]=>
int(75)
[“sharpen-images”]=>
bool(true)
[“watch-cache”]=>
bool(true)
[“browser-cache”]=>
float(365)
[“version”]=>
string(6) “0.6.61”
[“sanitized”]=>
bool(true)
}

Adaptive Images Settings
System information
Web Server
Apache
Document Root
/home3/nc30part/public_html
PHP
5.4.45
PHP Time Limit
30
PHP Memory Limit
256M
PHP Post Max Size
64M
PHP Upload Max Size
64M
PHP Max Input Vars
1000
PHP Display Errors
Yes
PHP Error Log
error_log
MySQL
5.5.51-38.2
MySQL Ext/mysqli
No
MySQL Table Prefix
wp_
MySQL DB Charset
utf8
WP
4.7.2
WP Multisite
No
WP Debug Mode
No
WP Site url
https://ourtour.co.uk/home
WP WP Home url
https://ourtour.co.uk/home
WP Permalinks
/%postname%/
WP home path
/home3/nc30part/public_html/home/
WP content dir
/home3/nc30part/public_html/home/wp-content
WP plugin dir
/home3/nc30part/public_html/home/wp-content/plugins
WP content url
https://ourtour.co.uk/home/wp-content
WP plugin url
https://ourtour.co.uk/home/wp-content/plugins
WP Locale
en_US
WP Memory Limit
40M
WP Max Upload Size
64mb
WP Active plugins
VaultPress v.1.8.6 by Automattic
Adaptive Images for WordPress v.0.6.61 by Nevma
Advertising Manager v.3.5.3 by Scott Switzer
Akismet v.3.2 by Automattic
All in one Favicon v.4.5 by Arne Franken
Audio player v.2.0.4.6 by Martin Laine
Cookie Law Info v.1.5.3 by Richard Ashby
DirtySuds – Embed PDF v.1.04 by Dirty Suds
Download Manager v.2.9.44 by Shaon
Enhanced Text Widget v.1.4.5 by Boston Dell-Vandenberg
Featured Images in RSS w/ Size and Position v.1.4.5 by Press Wizards
Google Doc Embedder v.2.6.2 by Kevin Davis, Dan Lester
Google-Maps-GPX-Viewer v.3.6 by ATLsoft, Bernd Altmeier
Instagram Feed v.1.4.8 by Smash Balloon
Lightbox Gallery v.0.8.3 by Hiroaki Miyashita
Lightbox Plus Colorbox v.2.7.2 by Dan Zappone
MailChimp for WordPress v.4.0.13 by ibericode
MapPress Easy Google Maps v.2.43.10 by Chris Richardson
P3 (Plugin Performance Profiler) v.1.5.3.9 by GoDaddy.com
Smart Archives Reloaded v.2.0.5 by scribu
Social Media Feather v.1.8.3 by socialmediafeather
TinyMCE Advanced v.4.4.3 by Andrew Ozz
Twitter v.2.0.1 by Twitter
Widget Logic v.5.7.2 by wpchefgadget, alanft
Wordfence Security v.6.3.1 by Wordfence
Yoast SEO v.4.3 by Team Yoast
WP Post Navigation v.1.2.3 by Anas Mir
WPFront Notification Bar v.1.7 by Syam Mohan
Yet Another Related Posts Plugin v.4.4 by Adknowledge
YouTube Channel v.3.0.10.4 by Aleksandar Uro?evi?
WP MU plugins
v. by