Unknown error

I have everything configured, I can see my private calendars in the backend, I can select them within the editor block, but when I view the page with the calendar, I receive an “Unknown error.”

### wp-core ###
version: 5.4.2
site_language: en_US
user_language: en_US
timezone: America/New_York
permalink: /%postname%/
https_status: true
user_registration: 0
default_comment_status: open
multisite: false
user_count: 3
dotorg_communication: true

### wp-paths-sizes ###
wordpress_path: /nas/content/live/hhwebsite
wordpress_size: 42.15 MB (44196198 bytes)
uploads_path: /nas/content/live/hhwebsite/wp-content/uploads
uploads_size: 90.98 MB (95401822 bytes)
themes_path: /nas/content/live/hhwebsite/wp-content/themes
themes_size: 9.30 MB (9754698 bytes)
plugins_path: /nas/content/live/hhwebsite/wp-content/plugins
plugins_size: 92.19 MB (96665177 bytes)
database_size: 5.50 MB (5767168 bytes)
total_size: 240.12 MB (251785063 bytes)

### wp-dropins (1) ###
advanced-cache.php: true

### wp-mu-plugins (5) ###
Elementor Safe Mode: version: 1.0.0, author: Elementor.com
Force Strong Passwords - WPE Edition: version: 1.6.4, author: Jason Cosper
WP Engine Seamless Login Plugin: version: 1.5.5, author: WP Engine
WP Engine Security Auditor: version: 1.0.9, author: wpengine
WP Engine System: version: 4.0.0, author: WP Engine

### wp-plugins-active (10) ###
Classic Editor: version: 1.5, author: WordPress Contributors
Duplicate Page: version: 4.2, author: mndpsingh287
Elementor: version: 2.9.13, author: Elementor.com (latest version: 2.9.14)
Elementor Addon Elements: version: 1.6.4, author: WebTechStreet
Elementor Pro: version: 2.10.3, author: Elementor.com
Gravity Forms: version: 2.4.19, author: Gravity Forms
Insert Headers and Footers: version: 1.4.6, author: WPBeginner
Private Google Calendars: version: 20200717, author: Michiel van Eerd
Restrict Content: version: 2.2.4, author: Sandhills Development, LLC
Yoast SEO: version: 14.6.1, author: Team Yoast

### wp-server ###
server_architecture: Linux 4.15.0-1040-gcp x86_64
httpd_software: Apache
php_version: 7.3.18-1+ubuntu18.04.1+deb.sury.org+1 64bit
php_sapi: apache2handler
max_input_variables: 10000
time_limit: 3600
memory_limit: 512M
max_input_time: 3600
upload_max_size: 50M
php_post_max_size: 100M
curl_version: 7.58.0 OpenSSL/1.1.1g
suhosin: false
imagick_availability: true
htaccess_extra_rules: false

### wp-constants ###
WP_HOME: undefined
WP_SITEURL: undefined
WP_CONTENT_DIR: /nas/content/live/hhwebsite/wp-content
WP_PLUGIN_DIR: /nas/content/live/hhwebsite/wp-content/plugins
WP_MAX_MEMORY_LIMIT: 512M
WP_DEBUG: false
WP_DEBUG_DISPLAY: true
WP_DEBUG_LOG: false
SCRIPT_DEBUG: false
WP_CACHE: true
CONCATENATE_SCRIPTS: undefined
COMPRESS_SCRIPTS: undefined
COMPRESS_CSS: undefined
WP_LOCAL_DEV: undefined
DB_CHARSET: utf8
DB_COLLATE: utf8_unicode_ci

### wp-filesystem ###