wordpress

Hi

Today, I installed via wordpress plugin. 

• I am using MasterStudy theme with WPBakery. It's a multisite.   
• I can create content, import demos and can place it on a page/post. No issues.
• The H5p content shows when I "preview" the page /post. 

Problem 

• The H5P content does not show when I publish a page of post.  ( During the preview, it is visible)

I am attaching 2 jpg files.  The error indicates towards  " H5PIntegration / missing translation).

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Is there anyone who can please me. I want to add h5p content on my google site. I've copy embed code from my content and then paste in google site but it's not working.

below is my h5p content code

Hi, i am usiung h5p plugin for wordpress and the actual wordpress-version 5.4.1 reports in the plugin list:
compatible until 5.3.3
this plugin is untested for your version of wordpress.

Question 1: Is is unsafe to use h5p on the current wordpress 5.4.1?

Question 2: Or do I have migrate back (all the other plugins, theme-development, ...) to the last compatible 5.3.3 Version?