Check if you can do the following:
I can create a wiki.
I can invite people to join my wiki.
I can insert a logo or widget in my wiki.
I can create a new page and insert an image or a file, insert a link, insert a video or a podcast, insert a table.
I can modify the pages I have created and check the changes I've made.
I can delete pages.
If you can't do any of those things, go to your space, check the information you can find in the PDF and try to do it.

Do the same with the other issues that we have worked!!!