Bug: Invalid argument

Version:Featured Image from URL:2.8.4;
Site:;
Theme:custom;
PHP:7.3.13;
WooCommerce:;
WordPress:5.3.2;
Pages:69;
Posts:844;
Products:;
Images without Dimensions:;
URLs with Metadata:1;
URLs:1;
php-curl:yes;
Plugins:
– 404 Error Log and Mail (404-error-log-mail)
– Admin Menu Editor (admin-menu-editor)
– Autoptimize (autoptimize)
– BJ Lazy Load (bj-lazy-load)
– Block Bad Queries (BBQ) (block-bad-queries)
– Classic Editor (classic-editor)
– Contact Form 7 (contact-form-7)
– Custom Field Bulk Editor (custom-field-bulk-editor)
– Deprecation Checker (deprecation-checker)
– Display Posts (display-posts-shortcode)
– Duplicator (duplicator)
– Dynamic Widgets (dynamic-widgets)
– Easy Updates Manager (stops-core-theme-and-plugin-updates)
– Email Subscribers (email-subscribers)
– Enable Media Replace (enable-media-replace)
– Featured Image from URL (featured-image-from-url)
– Google Analytics Dashboard for WP (GADWP) (google-analytics-dashboard-for-wp)
– Google XML Sitemaps (sitemap)
– Health Check & Troubleshooting (health-check)
– Heartbeat Control by WP Rocket (heartbeat-control)
– Image Watermark (image-watermark)
– KOBE Recipe Rating (kobe-stars-rating)
– Last Modified Timestamp (last-modified-timestamp)
– LiteSpeed Cache (litespeed-cache)
– Map Categories to Pages (map-categories-to-pages)
– NextScripts: Social Networks Auto-Poster (social-networks-auto-poster-facebook-twitter-g)
– NinjaFirewall (WP Edition) (ninjafirewall)
– Page template flush for file caching. (page-template-flush)
– Peter’s Login Redirect (peters-login-redirect)
– Phoenix Media Rename (phoenix-media-rename)
– PHP Everywhere (php-everywhere)
– Post Type Switcher (post-type-switcher)
– Print, PDF & Email by PrintFriendly (printfriendly)
– Query Monitor (query-monitor)
– Reduce Bounce Rate (reduce-bounce-rate)
– Revive Old Posts (tweet-old-post)
– Scheduled Post Trigger (scheduled-post-trigger)
– Search & Filter (searchandfilter)
– Simple Tags (simpletags)
– Simply Show IDs (simply-show-ids)
– Site Kit by Google (google-site-kit)
– Theme Check (theme-check)
– Theme Switcha (theme-switcha)
– UpdraftPlus – Backup/Restore (updraftplus)
– User Role Editor (user-role-editor)
– WordPress Popular Posts (wordpress-popular-posts)
– WP-Optimize – Clean, Compress, Cache (wp-optimize)
– WP Better Attachments (wp-better-attachments)
– WP Content Copy Protection & No Right Click (wp-content-copy-protector)
– WP Crontrol (wp-crontrol)
– WP Gallery Custom Links (wp-gallery-custom-links)
– WP Maintenance Mode (wp-maintenance-mode)
– WP Super Cache (wp-super-cache)
– WP YouTube Lyte (wp-youtube-lyte)
– Yet Another Related Posts Plugin (yet-another-related-posts-plugin)
– Yoast SEO (wordpress-seo);
Active Plugins:
– 404-error-log-mail
– admin-menu-editor
– bj-lazy-load
– block-bad-queries
– cf7-google-analytics
– classic-editor
– contact-form-7
– display-posts-shortcode
– dynamic-widgets
– email-subscribers
– featured-image-from-url
– google-analytics-dashboard-for-wp
– google-site-kit
– health-check
– kobe-stars-rating
– last-modified-timestamp
– litespeed-cache
– map-categories-to-pages
– ninjafirewall
– page-template-flush
– peters-login-redirect
– php-everywhere
– post-type-switcher
– printfriendly
– reduce-bounce-rate
– scheduled-post-trigger
– simple-tags
– simply-show-ids
– social-networks-auto-poster-facebook-twitter-g
– stops-core-theme-and-plugin-updates
– tweet-old-post
– updraftplus
– user-role-editor
– wordpress-popular-posts
– wordpress-seo
– wp-better-attachments
– wp-gallery-custom-links
– wp-youtube-lyte
– yet-another-related-posts-plugin;
fifu_auto_alt:toggleon;
fifu_class:toggleoff;
fifu_clean_dimensions_all:toggleoff;
fifu_column_height:64;
fifu_content:toggleoff;
fifu_content_page:toggleoff;
fifu_css:;
fifu_data_clean:toggleoff;
fifu_default_url:;
fifu_dynamic_alt:toggleoff;
fifu_enable_default_url:toggleoff;
fifu_fake:toggleoff;
fifu_get_first:toggleoff;
fifu_grid_category:toggleoff;
fifu_hide_page:toggleoff;
fifu_hide_post:toggleoff;
fifu_image_height_arch:;
fifu_image_height_cart:;
fifu_image_height_ctgr:;
fifu_image_height_home:;
fifu_image_height_page:;
fifu_image_height_post:;
fifu_image_height_prod:;
fifu_image_height_shop:;
fifu_image_width_arch:;
fifu_image_width_cart:;
fifu_image_width_ctgr:;
fifu_image_width_home:;
fifu_image_width_page:;
fifu_image_width_post:;
fifu_image_width_prod:;
fifu_image_width_shop:;
fifu_jquery:toggleoff;
fifu_lazy:toggleoff;
fifu_media_library:toggleoff;
fifu_original:toggleoff;
fifu_ovw_first:toggleoff;
fifu_pop_first:toggleoff;
fifu_query_strings:toggleoff;
fifu_save_dimensions:toggleoff;
fifu_save_dimensions_all:toggleoff;
fifu_save_dimensions_redirect:toggleoff;
fifu_social:toggleoff;
fifu_spinner_db:100;
fifu_wc_lbox:toggleon;
fifu_wc_zoom:toggleon;
REST Routes:
– http://www.site.com/wp-json/:PHP;
– http://www.site.com/wp-json/:JS

Yes, sorry, it’s a warning.

I’m going to change it and keep an eye on it. The warning isn’t there every day. I’ll keep you updated.

Thanks