Strip No Longer Works After Upgrade

Hi,

Clicking on the “Pay by Card” button no longer opens up a the stripe lightbox for users to put in their CC info. This was working fine on WP 4.7.x and the older version of the plugin. I had to go and copy the settings from Legacy 1.6 to the new settings page and I changed our shortcode from the old ones to the new ones by creating a new payment form.

I also checked to make sure it’s not our theme (Divi) by loading WP twenty-fifteen theme.

Not sure what else to check to figure out what is the issue. Here are some screenshots:

Front page using WP twenty-fifteen theme: https://www.screencast.com/t/mntj0cmA8
Backend page: https://www.screencast.com/t/6UppmBf8SGYe

Settings Page: https://www.screencast.com/t/VLxwdumx

Payment Form: https://www.screencast.com/t/HaEyOZpvdIpC

And here is the status page report:

### WordPress Installation ###

Site Name: *** (Removed)
Home URL: https://*** (Removed)
Site URL: https://*** (Removed)
SSL/HTTPS Enabled: Yes
Version: 4.8.2
Locale: en_US
Multisite: No
Permalinks: /%postname%/
WP Memory Limit: 40 MB
WP Debug Mode: No
Script Debug: No

### WP Simple Pay Settings ###

WP Simple Pay Version: 2.0.3
Stripe TLS: TLS 1.2 is supported. No action required.
Simple Pay Test or Live Mode: Live Mode

### Active Theme ###

Theme: Divi Child – Version: 2.3.1
Child Theme: Yes
Parent Theme: Divi – 3.0.84

### Active Plugins ###

WP Simple Pay Lite: 2.0.3
Addendio PLUS: 1.1.0
Elegant Themes Updater: 1.2

### Server Environment ###

Web Server: Apache
PHP Version: 7.0.24
MySQL Version: 5.5.5-10.2.9-MariaDB
Server Timezone: UTC
Display Errors: No
Server PHP Memory Limit: 256M
Upload Max Filesize: 16M
Post Max Size: 16M
Max Execution Time: 30
Max Input Vars: 1000
fsockopen: Yes
cURL: 7.29.0
NSS/3.28.4
SOAP: Yes
SUHOSIN: No
WP Remote POST: Yes
WP Remote GET: Yes

### Client Information ###

IP Address: *** (Removed)
Browser: Chrome 62.0.3202.62 (Windows)