WooCommerce Paypal payments stuck, what next?

Hi there, I built a registration site for a client using WooCommerce and everything seemed to going well until she was getting set to receive her first online payments through PayPal.

She got the error: “Validation error: PayPal IPN response from a different email address (—[email protected]). Order status changed from Pending Payment to On Hold.”

I got the emails figured out and the correct API info from Paypal, manually changed the status from On Hold to Processing, but nothing new has come through. Is there a way to reprocess the payments, or push Paypal to refresh? What are the next steps?

### WordPress Environment ###

Home URL: https://arpeggio.anchor87.com
Site URL: https://arpeggio.anchor87.com
WC Version: 2.6.4
Log Directory Writable: ?
WP Version: 4.6.1
WP Multisite: –
WP Memory Limit: 256 MB
WP Debug Mode: –
WP Cron: ?
Language: en_CA

### Server Environment ###

Server Info: Apache/2.4.23
PHP Version: 5.6.25
PHP Post Max Size: 8 MB
PHP Time Limit: 30
PHP Max Input Vars: 1000
cURL Version: 7.36.0
OpenSSL/1.0.1e

SUHOSIN Installed: –
MySQL Version: ? 5.5.49 - We recommend a minimum MySQL version of 5.6. See: WordPress Requirements
Max Upload Size: 2 MB
Default Timezone is UTC: ?
fsockopen/cURL: ?
SoapClient: ?
DOMDocument: ?
GZip: ?
Multibyte String: ?
Remote Post: ?
Remote Get: ?

### Database ###

WC Database Version: 2.6.4
: 
woocommerce_sessions: ?
woocommerce_api_keys: ?
woocommerce_attribute_taxonomies: ?
woocommerce_downloadable_product_permissions: ?
woocommerce_order_items: ?
woocommerce_order_itemmeta: ?
woocommerce_tax_rates: ?
woocommerce_tax_rate_locations: ?
woocommerce_shipping_zones: ?
woocommerce_shipping_zone_locations: ?
woocommerce_shipping_zone_methods: ?
woocommerce_payment_tokens: ?
woocommerce_payment_tokenmeta: ?

### Active Plugins (6) ###

Homepage Control: by WooThemes – 2.0.2
Registrations for WooCommerce: by Haste - design and technology
Allyson Souza
Anyssa Ferreira – 1.0.1

WooCommerce Checkout Field Editor Pro: by ThemeHiGH – 2.5.3
WooCommerce Extra Product Sorting Options: by SkyVerge – 2.5.0
WooCommerce PayPal Express Checkout Gateway: by Automattic – 1.1.2
WooCommerce: by WooThemes – 2.6.4

### Settings ###

Force SSL: –
Currency: CAD ($)
Currency Position: left
Thousand Separator: ,
Decimal Separator: .
Number of Decimals: 2

### API ###

API Enabled: ?

### WC Pages ###

Shop Base: #4 - /
Cart: #5 - /cart/
Checkout: #6 - /checkout/
My Account: ? Page visibility should be public

### Taxonomies ###

Product Types: external (external)
grouped (grouped)
registrations (registrations)
simple (simple)
variable (variable)

### Theme ###

Name: WOOT
Version: 2.0.6
Author URL: https://deucethemes.com/
Child Theme: ?
Parent Theme Name: Storefront
Parent Theme Version: 2.1.3 – 2.1.4 is available
Parent Theme Author URL: https://woocommerce.com/
WooCommerce Support: ?

### Templates ###

Overrides: woot/archive-product.php