Bugs in content types

Hello,

I have an interactive presentation that includes a interactive video with a lot of interactions in one of the presentation's pages.

We updared the interactive video version from 1.24 to 1.26.

Then we imported the H5P from the original course to a new course (on other Moodle site, including also version 1.26 of the interactive video),

and we got the next error message on the page of the video (in the new Moodle site):

i have a wordpress site using h5p

when i try to add an interactive video, it does not allow me to add the interactivity modules to the video. it does not give me the option to edit them. attached evidence. i have already checked that the content and the plugin was updated to the latest version. 

Hi. I'm trying to get mathematical expressions in H5P installed in Moodle. Following the instructions that I got in several sites (specially https://h5p.org/mathematical-expressions), I install the math display library in my Moodle site sucessfully. Even more, I did the same in Lumio and there it works. Nevertheless, in my Moodle site, I'm unable to get the same result of Lumio. 

My Moodle site runs version 4.15

Thanks a lot for your valuable advices.