It needs to be tuned. The wrinkled side lugs are loose and the opposite side are still under tension. If that's not the case, swap the head. It should be fine though.
If you really struggle with a drumhead that has come off, you obviously have no clue about what a drumhead does on a drum. There are tons of drum tuning tutorials on YT to watch and get an idea first, how to start putting heads on a drum and then get it tuned correctly.
To just turn a few screws around the drum without having understood the matter can get frustrating very soon if your new drum only produces "boooing" anytime you hit it. Drum tuning isn't just about tensioning the heads somehow, but you have to do certain steps AND develope a hearing, so it may take a little time
In case I need to get new drum heads, how do I find out what sizes I need for drum heads? I have the Tama Rockstar drum set.
That's a good way to do it if you know which side of the shell to measure and whether to round up or down accordingly (ie. sometimes the diameter of the shell is not exactly the size of the drumhead).Remove the hoop & head and measure the diameter of the shell and round off to the closest inch.