I had the same issue with both Yoast and Social Warfare plugins.
Sent you my site’s admin login via your web form. In the meantime, here is a dump of my diagnostic info:
=== Diagnostic Glance 0.9.1 ===
WordPress Version: 4.4.2
== Listed Themes ==
[a] Dylan Robertson Theme – Version 2.3.2
[ ] Publisher Child Theme – Version 1.0
[ ] Publisher – Version 2.3.2
3 themes present.
== Listed Plugins ==
[a] Admin Custom Login – Version 2.4.2
[a] Admin Menu Editor Pro – Version 2.1
[a] Admin Post Navigation – Version 2.0
[a] AnsPress – Version 2.4.6
[a] AnsPress Email – Version 1.3
[a] Better Internal Link Search – Version 1.2.12
[a] Better Plugin Compatibility Control – Version 4.4.0.2
[a] Better Search Replace – Version 1.2.9
[a] Bring Back the Get Shortlink Button – Version 1.1.0
[a] Caldera Forms – Version 1.3.3.1
[a] Categories for AnsPress – Version 1.4.1
[a] Crowd Control by Postmatic – Version 1.1
[a] Diagnostic Glance – Version 0.9.2
[a] Enable Media Replace – Version 3.0.4
[a] Epoch – Version 1.0.14
[a] External Links – Version 6.7
[a] Featured Image Caption – Version 0.8.2
[a] Google Analytics by Yoast – Version 5.4.6
[ ] Handsome Testimonials – Version 1.4.0
[a] Imsanity – Version 2.3.6
[a] Insert Headers and Footers – Version 1.3.3
[a] Jetpack by WordPress.com – Version 3.9.4
[a] KingSumo Headlines – Version 1.0.8
[a] My eyes are up here – Version 1.0.2
[a] Ninja Footers – Version 0.1.6
[a] Postmatic – WordPress Subscriptions & Commenting by Email – Version 1.4.13
[a] Postmatic For Caldera Forms – Version 1.0.1
[a] Postmatic Social Commenting – Version 1.1.1
[a] Simple Comment Editing – Version 1.9.1
[a] Skimlinks – Version 1.2.4
[a] Social Metrics Tracker – Version 1.6.6
[a] Social Warfare – Version 1.4.2
[a] SO Hide SEO Bloat – Version 2.1.0
[a] TablePress – Version 1.7
[a] Tags for AnsPress – Version 1.5.2
[a] Triberr – Version 4.0.2
[a] WordPress Social Login – Version 2.3.0
[a] WordPress Zero Spam – Version 2.0.2
[a] WP-DraftsForFriends – Version 1.0.2
[a] WP Clean Up – Version 1.2.3
[a] WP LinkedIn – Version 2.5.4
[a] WP to Buffer Pro – Version 3.1.2
[a] WP Word Count – Version 1.6.1
[a] Yoast SEO – Version 3.1.1
43 active plugins out of 44 present
== WordPress Config ==
Permalink Structure: /%postname%/
Category Base: undefined
Tag Base: undefined
WP Max Memory Limit: 256M
WP Memory Limit: 40M
WP Max Upload Size: 50M
WP Cache: on
WP Debug: off
WP Debug Log: off
WP Debug Display: on
Display Errors: off
Log Errors: on
Error Log Path: /var/log/apache2/idylan.error.log
Concatenate Scripts: off
Allow Multisite: default*
Disable Auto Updates: default*
Enable Core Updates: off
Disallow File Edit: allowed
Disallow File Mods: allowed
*default – not explicitly set in wp-config.php,
so wp defaults apply.
== Hosting and System Config ==
Server: Apache
PHP Version: 5.5.9-1ubuntu4.14
MySQL Database Version: 5.6.28
PHP Memory Limit: 256M
PHP Max Upload Size: 50M
PHP Post Max Size: 100M
PHP SAPI: apache2handler.
== PHP Extensions [ 64 Enabled ] ==
apache2handler, bcmath, bz2, calendar,
Core, ctype, curl, date,
dba, dom, ereg, exif,
fileinfo, filter, ftp, gd,
gettext, hash, iconv, imagick,
imap, ionCube Loader, json, ldap,
libxml, mbstring, mcrypt, memcache,
memcached, mhash, mysql, mysqli,
newrelic, openssl, pcre, PDO,
pdo_mysql, Phar, posix, readline,
redis, Reflection, runkit, session,
shmop, SimpleXML, soap, sockets,
SPL, ssh2, standard, sysvmsg,
sysvsem, sysvshm, tokenizer, wddx,
xml, xmlreader, xmlrpc, xmlwriter,
xsl, Zend OPcache, zip, zlib
== Apache Module List Unavailable ==
You’re running PHP as apache2handler.
== General Site Statistics ==
Administrators: 6
Subscribers: 5
Nones: 0
Total Users: 11
Published Pages: 11
Draft Pages: 0
Published Posts: 22
Draft Posts: 0
Comments in Moderation: 0
Comments Approved: 5
Comments Spam: 0
Comments Trash: 0
All Comments: 5
Images: 112
Other Media: 5
All Media: 117
