Embedded video problem on mobile device

Running website on Beaver Builder Child Theme version 1.0 (not my choice but what I inherited).

Embedded a youtube video. Video works fine on desktop access. With no problems on my Google Chrome browser.

Video does not run on mobile. Tried Google, Safari and DuckDuckGo browsers. Same result on each. Get message: “An error occurred. Please try again later. (Playback ID: [insert random code on each attempt]) Learn More” Using iPhone 7 Plus running iOS 13.4.

Tried a direct embed. Also tried the embed via the “Embed Plus for YouTube” plugin (to avoid showing of additional off-topic YouTube videos at the end of my video). Get same result.

Please help!