A loop is going round forever, because its condition never becomes false. Check that something inside the loop changes the value it tests.
For example, Repeat While count < 10 needs a Change Value block like count = count + 1 inside it.
Press Stop (or Esc) while it runs to end it there, keeping what it showed. B4Coder also stops any program after 10,000 steps and tells you.
Open it in the editor and run it, then change it and see what happens.
count = 1count <= 3Repeat →
"Count: " + countcount to count + 1back to the top for the next lap
"Done!"Count: 1Count: 2Count: 3Done!count = 1while count <= 3: print("Count: " + str(count)) count = count + 1print("Done!")