Welcome @hope26
We can try to help you to complete the tutorial. Would you like to share back your history so we can see the step where you are stuck? How to generate and post back the share link is in the banner of this forum, also here →
We can also double check that this is working at the history where you are working. The public Galaxy server’s listed on the tutorial under Available at these Galaxies are usually the best choices, although it may work other places.
Then for your specific issue mentioned.
The yellow/orange dataset color indicates that a job is still processing. Depending on the tool, this can be very normal. If you are just converting the datatype, this should go quickly, but if you are executing a tool, that can run at a variable time limit, up to several days in some cases.
Let’s start there! Seeing your history would be the best way for us to help more.