Spot the error ? I've included the ESV alongside to help you out..... No peeking at the answer below 

Did you catch the error. Look at the heading for Joshua 12:1-6 and the heading for Joshua 12:7ff.
In the LEB the headings are around the wrong way. The LEB headings are suggesting Joshua 12:1-6 are about the Kings defeated by Joshua, however these verses are actually about the Kings defeated by Moses. And it wrongly suggests verses 7ff are about the Kings defeated by Moses when in fact we can see from v7 it is about the kings defeated by Joshua.
One of those errors spell check isn't going to higlight.
Note: Typo submitted on both errors