Add Variation

I’ve done this 100 times – but this week it doesn’t work.

Under product data I can’t add a variation.
The button is there, however when I click on it it doesn’t work.

My product type is Variable
I’ve selected my product attributes
I’ve checked “is for variations”

Here are links to screenshots: https://www.dropbox.com/sh/7szjaizdj5sqdd4/AAAubo3l3OCrAEbXCHoo-Oeba?dl=0

I’ve tried Chrome, Firefox, and Safari browsers

Here is my system info:

### Begin System Info ###

Multi-site: No

SITE_URL: http://aromascoffee.com
HOME_URL: http://aromascoffee.com

Jigoshop Version: 1.15.4
WordPress Version: 4.1

Platform: Apple
Browser Name: Chrome
Browser Version: 40.0.2214.93
User Agent String: Mozilla/5.0 (Macintosh; Intel Ma
c OS X 10_10_0) AppleWebKit/537.
36 (KHTML, like Gecko) Chrome/40
.0.2214.93 Safari/537.36

PHP Version: 5.3.26
MySQL Version: 5.5.40
Web Server Info: Apache

eAccelerator: Disabled
APC: Disabled
OpCache: Disabled

PHP Memory Limit: 256M
PHP Post Max Size: 10MB
PHP Upload Max File Size: 50MB
PHP Max Input Time: 60
PHP Max Input Vars: 1000
WordPress Memory Limit: 64MB

Short Open Tag: Enabled
Allow URL fopen: Enabled

WP_DEBUG: Disabled
WP Table Prefix: Length: 3 Status: Acceptable

Show On Front: page
Page On Front: 8
Page For Posts: 0

Session: Enabled
Session Name: PHPSESSID
Cookie Path: /
Save Path: /tmp
Use Cookies: On
Use Only Cookies: On

DISPLAY ERRORS: N/A
FSOCKOPEN: Supported

ACTIVE PLUGINS:

Duplicate Post: 2.6
Jigoshop: 1.15.4
Ninja Popups: 2.2

CURRENT THEME:

Sommerce: 2.9.3

### End System Info ###

https://ww.wp.xz.cn/plugins/jigoshop/