Woo Support Question

We sell online course via Woo and Sensei, we are on occasion, getting errors on payment that the last name isn’t accepted even tho it is clearly there. Have you heard of this before? Any known causes or anything like that?

### WordPress Environment ###

WordPress address (URL): https://usaclaytargetsafe.com
Site address (URL): https://usaclaytargetsafe.com
WC Version: 3.9.3
REST API Version: ✔ 1.0.7
Log Directory Writable: ✔
WP Version: 5.3.2
WP Multisite: –
WP Memory Limit: 512 MB
WP Debug Mode: –
WP Cron: ✔
Language: en_US
External object cache: –

### Server Environment ###

Server Info: Apache/2.4.29 (Ubuntu)
PHP Version: 7.2.24-0ubuntu0.18.04.3
PHP Post Max Size: 16 MB
PHP Time Limit: 600
PHP Max Input Vars: 1000
cURL Version: 7.58.0
OpenSSL/1.1.1

SUHOSIN Installed: –
MySQL Version: 5.7.29-0ubuntu0.18.04.1
Max Upload Size: 16 MB
Default Timezone is UTC: ✔
fsockopen/cURL: ✔
SoapClient: ✔
DOMDocument: ✔
GZip: ✔
Multibyte String: ✔
Remote Post: ✔
Remote Get: ✔

### Database ###

WC Database Version: 3.9.3
WC Database Prefix: wp_
Total Database Size: 122.95MB
Database Data Size: 79.29MB
Database Index Size: 43.66MB
wp_woocommerce_sessions: Data: 0.30MB + Index: 0.01MB + Engine MyISAM
wp_woocommerce_api_keys: Data: 0.00MB + Index: 0.00MB + Engine MyISAM
wp_woocommerce_attribute_taxonomies: Data: 0.00MB + Index: 0.00MB + Engine MyISAM
wp_woocommerce_downloadable_product_permissions: Data: 0.00MB + Index: 0.00MB + Engine MyISAM
wp_woocommerce_order_items: Data: 0.29MB + Index: 0.15MB + Engine MyISAM
wp_woocommerce_order_itemmeta: Data: 1.73MB + Index: 1.36MB + Engine MyISAM
wp_woocommerce_tax_rates: Data: 0.00MB + Index: 0.01MB + Engine MyISAM
wp_woocommerce_tax_rate_locations: Data: 0.00MB + Index: 0.00MB + Engine MyISAM
wp_woocommerce_shipping_zones: Data: 0.00MB + Index: 0.00MB + Engine MyISAM
wp_woocommerce_shipping_zone_locations: Data: 0.00MB + Index: 0.00MB + Engine MyISAM
wp_woocommerce_shipping_zone_methods: Data: 0.00MB + Index: 0.00MB + Engine MyISAM
wp_woocommerce_payment_tokens: Data: 0.01MB + Index: 0.01MB + Engine MyISAM
wp_woocommerce_payment_tokenmeta: Data: 0.04MB + Index: 0.04MB + Engine MyISAM
wp_woocommerce_log: Data: 0.00MB + Index: 0.00MB + Engine MyISAM
wp_commentmeta: Data: 13.96MB + Index: 3.98MB + Engine MyISAM
wp_comments: Data: 7.63MB + Index: 7.04MB + Engine MyISAM
wp_fa_user_logins: Data: 16.54MB + Index: 9.62MB + Engine MyISAM
wp_links: Data: 0.00MB + Index: 0.00MB + Engine MyISAM
wp_options: Data: 2.37MB + Index: 0.51MB + Engine MyISAM
wp_postmeta: Data: 17.68MB + Index: 10.80MB + Engine MyISAM
wp_posts: Data: 1.96MB + Index: 0.78MB + Engine MyISAM
wp_termmeta: Data: 0.00MB + Index: 0.01MB + Engine MyISAM
wp_terms: Data: 0.00MB + Index: 0.01MB + Engine MyISAM
wp_term_relationships: Data: 0.00MB + Index: 0.01MB + Engine MyISAM
wp_term_taxonomy: Data: 0.00MB + Index: 0.01MB + Engine MyISAM
wp_usermeta: Data: 16.21MB + Index: 8.69MB + Engine MyISAM
wp_users: Data: 0.55MB + Index: 0.59MB + Engine MyISAM
wp_wc_download_log: Data: 0.00MB + Index: 0.00MB + Engine MyISAM
wp_wc_product_meta_lookup: Data: 0.00MB + Index: 0.01MB + Engine MyISAM
wp_wc_tax_rate_classes: Data: 0.02MB + Index: 0.02MB + Engine InnoDB
wp_wc_webhooks: Data: 0.00MB + Index: 0.00MB + Engine MyISAM

### Post Type Counts ###

acf: 1
attachment: 6
captainform_post: 1
certificate: 3945
certificate_template: 2
course: 3
lesson: 57
nav_menu_item: 4
page: 12
post: 3
product: 4
question: 47
quiz: 57
revision: 70
scheduled-action: 5
shop_coupon: 5
shop_order: 4455
shop_order_refund: 1
wccf_user_field: 7

### Security ###

Secure connection (HTTPS): ✔
Hide errors from visitors: ✔

### Active Plugins (14) ###

Authorize.Net CIM for WooCommerce: by Cardpay Solutions
Inc. – 2.0.12

CaptainForm: by captainform – 2.5.3
Disable Comments: by Samir Shah – 1.10.2
Limit Login Attempts: by Johan Eenfeldt – 1.7.1
Login No Captcha reCAPTCHA (Google): by Robert Peake – 1.6.7
MMI Storyline Insert: by Jeremy Severson – 1.0
SendGrid: by SendGrid – 1.11.8
Sensei Certificates: by WooThemes – 1.0.16
Sensei LMS Course Progress: by Automattic – 2.0.2
Lesson Timer for Sensei: by ElementLMS
LLC – 1.2.1

User Login History: by Er Faiyaz Alam – 1.7.3
WooCommerce Custom Fields: by RightPress – 2.2 – Not tested with the active version of WooCommerce
WooCommerce: by Automattic – 3.9.3
Sensei: by WooThemes – 1.9.9

### Inactive Plugins (4) ###

Order / Coupon / Subscription Export Import Plugin for WooCommerce (BASIC): by WebToffee – 1.6.1
Sensei LMS: by Automattic – 2.4.0
WooCommerce Coupon Generator: by Jeroen Sormani – 1.1.0 – Not tested with the active version of WooCommerce
WooCommerce Menu Cart: by Jeremiah Prummer
Ewout Fernhout – 2.7.7

### Settings ###

API Enabled: ✔
Force SSL: ✔
Currency: USD ($)
Currency Position: left
Thousand Separator: ,
Decimal Separator: .
Number of Decimals: 2
Taxonomies: Product Types: external (external)
grouped (grouped)
simple (simple)
variable (variable)

Taxonomies: Product Visibility: exclude-from-catalog (exclude-from-catalog)
exclude-from-search (exclude-from-search)
featured (featured)
outofstock (outofstock)
rated-1 (rated-1)
rated-2 (rated-2)
rated-3 (rated-3)
rated-4 (rated-4)
rated-5 (rated-5)

Connected to WooCommerce.com: –

### WC Pages ###

Shop base: #20 - /shop/
Cart: #21 - /cart/
Checkout: #22 - /checkout/
My account: #23 - /my-account/
Terms and conditions: ❌ Page not set

### Theme ###

Name: Scholar
Version: 1.0.0 – 1.1.7 is available
Author URL: http://www.woothemes.com
Child Theme: ✔
Parent Theme Name: Canvas
Parent Theme Version: 5.11.6 – 5.12.0 is available
Parent Theme Author URL: http://www.woothemes.com/
WooCommerce Support: ✔

### Templates ###

Overrides: –

### Action Scheduler ###

Complete: 4
Oldest: 2020-02-13 15:40:32 -0600
Newest: 2020-03-05 15:45:54 -0600

Pending: 1
Oldest: 2020-03-12 16:45:54 -0500
Newest: 2020-03-12 16:45:54 -0500

Canceled: 0
Oldest: –
Newest: –

In-progress: 0
Oldest: –
Newest: –

Failed: 0
Oldest: –
Newest: –

The page I need help with: [log in to see the link]