SSL Certification Error on mellowest.co

Hello WPMU!

I'm having a little issue with SSL Certification to http://mellowest.co. I wrote in earlier and the Tech resubmitted the SSL request, but it still shows an error on the Domain panel. I've provided a screenshot for reference:

Here's a complete system report as well:

====== BEGIN REPORT ======

— WORDPRESS DATA —

Multisite: No

SITE_URL: https://www.mellowest.co

HOME_URL: https://www.mellowest.co

WP Version: 5.0.3

Permalink: /%postname%/

Current Theme: Divi 3.19.11

Parent Theme: Divi 3.19.11

— WORDPRESS CONFIG —

WP_DEBUG: Disabled

WP Memory Limit: 40MB

jQuery Version: 1.12.4

Site Language: en-US

Site Text Direction: ltr

— SERVER DATA —

PHP Version: 7.2.13-1+ubuntu18.04.1+deb.sury.org+1

Server Software: nginx/1.14.0

— PHP CONFIGURATION —

Safe Mode: No

memory_limit: 256M

upload_max_filesize: 128M

post_max_size: 128M

max_execution_time: 300

max_input_vars: 3000

max_input_time: 120

Display Errors: Off

Cookie Path: /

Save Path: /var/lib/php/sessions

Use Cookies: On

cURL: Supports cURL.

OpenSSL: OpenSSL installed.

— PLUGIN INFORMATION —

Total Plugins: 10

Must-Use Plugins: (1)

– WPMU DEV Hosting 0.1

Active Plugins: (7)

– Defender Pro 2.0.1

– Divi Den Pro 3.8.3

– Hummingbird Pro 1.9.3

– SmartCrawl 2.2.4.1

– Smush Pro 3.1.0

– Snapshot Pro 3.2.0.1

– WPMU DEV Dashboard 4.6

Inactive Plugins: (2)

– Akismet Anti-Spam 4.1.1

– Hello Dolly 1.7

====== END REPORT ======