Installation and server related problems

Hi I am getting the following error when trying to install the Branching Scenario content type. On install from the hub, it just spins. On install from uploaded h5p package, it spins until php times out (max execution time set to 300). Other content types (e.g., multiple choice) install without problems. Does the content type require additional configuration?

I am using: wordpress 5.7.2 | h5p 1.15.3 | php 8.0.3 | apache 2.4.46

Dear community,

a few months ago I found the programm Lumi and I was so glad for the possibility to convert H5P files in html. I wantet to integrate H5P content to our online library, so I put the html file on our server. But when I try to open the file with the browser, it just shows the kryptic source code. I can open the file without any problems with every browser on every device, as long as the file is on the device itself. As soon as it is on the server, the graphic representation fales. 

Does anyone know what could be the problem? Is it a server-thing?

Dear community,

a few months ago I found the programm Lumi and I was so glad for the possibility to convert H5P files in html. I wantet to integrate H5P content to our online library, so I put the html file on our server. But when I try to open the file with the browser, it just shows the kryptic source code. I can open the file without any problems with every browser on every device, as long as the file is on the device itself. As soon as it is on the server, the graphic representation fales. 

Does anyone know what could be the problem? Is it a server-thing?