I too have this issue but Google is treating it very harshly. Switching from Classic to Paired results in Google removing the page from its index. Switching it back results in re-indexing in a few weeks.
Be aware that his is the kiss of death for any type of site depending on its AMP pages being found.
Google Search Console started reporting AMP issues with over 200 posts using Hueman Theme.
Specifically the error is:
Linked AMP version is invalid
It won’t appear in Google Search results. Learn more
Error started appearing 1/28 now affecting 215 posts.
# SITE_URL: https://thumbwind.com
# HOME_URL: https://thumbwind.com
# IS MULTISITE : No
# THEME | VERSION : Hueman Pro | v1.1.10
# WP VERSION : 5.0.3
# PERMALINK STRUCTURE : /%year%/%monthnum%/%day%/%postname%/
# 16 ACTIVE PLUGINS :
– Ads.txt Manager (version 1.1)
– Akismet Anti-Spam (version 4.1.1)
– AMP (version 1.0.2)
– Easy Add Thumbnail (version 1.1.1)
– Forty Four – 404 Plugin for WordPress (version 1.4)
– Glue for Yoast SEO & AMP (version 0.4.3)
– Jetpack by WordPress.com (version 6.9)
– Media File Renamer Auto (version 4.5.2)
– Nimble Page Builder (version 1.4.7)
– Regenerate Thumbnails (version 3.1.0)
– Revive Old Posts (version 8.1.8)
– WooCommerce (version 3.5.4)
– WooCommerce Services (version 1.18.0)
– WooCommerce Stripe Gateway (version 4.1.14)
– WP Ultimate Exporter (version 1.4.3)
– Yoast SEO Premium (version 9.5)
# PHP Version: 7.0.33
# MySQL Version: 5.5.5-10.2.15-MariaDB-log
# Web Server Info: nginx
# WordPress Memory Limit: 256MB
# PHP Memory Limit: 256M
# PHP Upload Max Size: 2047M
# PHP Post Max Size: 2047M
# PHP Upload Max Filesize:2047M
# PHP Time Limit: 1200
# PHP Max Input Vars: 6144
# PHP Arg Separator: &
# PHP Allow URL File Open:Yes
# WP_DEBUG: Disabled
# Show On Front: posts
# Page On Front: (#0)
# Page For Posts: (#0)