Backend is missing button for group and frontend nothing shows

I just made a fresh install of joomla 4, and installed recently purchased youtube feed module. But when I paste a channel, hit save and add ithe module to the home (via either module or position) it's just blank.

I switched template from Helix Ultimate to Cassiopeia, still blank.
Then i noticed, that my backend view of the module is also missing the option to add groups, so I thought maybe that could be the issue.

Could you guys help me out? Thanks!