IBM quantum computer giving the wrong result?

This is the first time I am using the IBM quantum computer. I tried to run a circuit (see below the first picture) but the results I got don't match the theoretical results shown (see below the second picture). I am honestly not sure what to do or why this happens. I also tried to run different circuits but they seem to have to same problem so I am probably misinterpreting something. I also tried to use a different quantum processor but they give the same problem.

This happens because the effect of measuring a qubit. Half of the time, the qubit $$q_0$$ collapses to $$1$$, half of the time to $$0$$.
In your first example, $$q_0$$ collapsed to $$1$$, so your theoretical chances (from the second example) of $$*0$$ are distributed among $$01$$ and $$11$$.
You can see that if you change the Visualisation seed on the top right corner. Here is an example with seed = 1726:
In this case, $$q_0$$ collapsed to $$0$$ and $$*1$$ is not happening now. As a consequence, the only possible result is $$00$$, since $$10$$ was never a possibility (even without the measurement).