0

Tried with default theme: No

Tried with all other plugins disabled: No

Browser version: Chrome 88

Page showing the issue: https://andrew.london/video

When trying to save settings, I get this message at the bottom of the page

{“code”:”rest_no_route”,”message”:”No route was found matching the URL and request method”,”data”:{“status”:404}}

Also none of the play buttons work on the videos – see https://andrew.london/video

ARVE Version: 9.0.0-beta7
ARVE Pro Version: 5.0.0-beta9
ARVE AMP Version: NOT INSTALLED
ARVE Random Video: NOT INSTALLED
WordPress Version: 5.5.3
PHP Version: 7.3.25

ACTIVE PLUGINS:
Akismet Anti-Spam: 4.1.7
All-in-One Event Calendar by Time.ly: 2.6.8
All-in-One Event Calendar Extended Views by Time.ly: 1.2.12
All in One SEO Pro: 4.0.4
ARVE Advanced Responsive Video Embedder: 9.0.0-beta7
ARVE Pro Addon: 5.0.0-beta9
AuthorSure: 2.3
Better Click To Tweet: 5.9.5
Better WordPress Google XML Sitemaps: 1.4.1
Classic Editor: 1.6
Contact Form 7: 5.1.6
CoSchedule: 3.3.1
Disable Empty Trash: 1.0.0
Disqus Conditional Load: 11.0.5
Duo Two-Factor Authentication: 2.5.6
Duplicator: 1.3.40
Enable Media Replace: 3.5.0
EWWW Image Optimizer: 5.8.2
Flamingo: 2.2.1
Google Tag Manager for WordPress: 1.11.6
Handsome Testimonials & Reviews: 2.0.7
HubSpot All-In-One Marketing – Forms, Popups, Live Chat: 7.48.24
Jetpack by WordPress.com: 9.2
Jupiter Core: 1.0.2
Jupiter Donut: 1.1.0
MailChimp: 1.5.7
MC4WP: Mailchimp for WordPress: 4.8.1
NextGEN Gallery: 3.4.7
NextGEN Gallery Image Optimizer: 1.2
Ninja Footers: 0.2.0
PDF Embedder Premium: 4.4.1
podcast player: 4.0.0
Quick Featured Images: 13.5.1
Quick Page/Post Redirect Plugin: 5.2.1
Really Simple SSL: 4.0.5
Really Simple SSL pro: 4.0.3
Related Posts by Bibblio: 1.3.7
Shortcake (Shortcode UI): 0.7.4
Slider Revolution: 6.3.2
Smart Archives Reloaded: 2.0.5
Tracking Code Manager: 1.12.3
VaultPress: 2.1.4
Vimeography: 2.1.2
Vimeography Developer Bundle: 2.1.1
Vimeography Pro: 2.0.2
Warm cache: 3.0.0
Widget Options: 3.7.6
Wordfence Security: 7.4.14
WP-Optimize – Clean, Compress, Cache: 3.1.4
WPBakery Page Builder (Modified Version): 6.4.1
WP Fastest Cache: 0.9.1.3
WP Fastest Cache Premium: 1.5.9
WP Lightbox 2: 3.0.6.4
WP Mail SMTP: 2.5.1
WP Rollback: 1.7.1
Yoast Duplicate Post: 3.2.6

ARVE OPTIONS:
bool(false)

Answered question