INTRODUCTION:
WHAT IS MISUNDERSTANDING?

misunderstanding

/ˌmɪsʌndəˈstandɪŋ/
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noun
noun: misunderstanding; plural noun: misunderstandings
a failure to understand something correctly.
"a misunderstanding of the government's plans"
synonyms: misinterpretation, misconstruction, misreading, misapprehension, misconception; More
a disagreement or quarrel.
"he left the army after a slight misunderstanding with his commanding officer"
synonyms: disagreement, difference, difference of opinion, variance, clash of views, dispute, disputation, falling-out, quarrel, argument, altercation, squabble, wrangle, row, clash, conflict; More
antonyms: harmony
DEFINITION SOURCE

HOW TO RESOLVE THE ISSUE:

The two persons are right in their own eyes, no one is wrong. It takes the one who will claim to be wrong to correct the issue. It was said that Pushcart had quarrel with the rats in a building where they were living normally together. The Cart was coming out in turns to catch them and feeding itself. One day the rats had meeting on how to escape the trap of the cart. One of the rats suggested that bell should be pinned on the tail of the cart so, that whenever it comes it bell will giggle as to warn them. The suggestion was so good, but who will bell the cart is the million dollar question.
Remove the Mis from Misunderstanding you will discover that you will have UNDERSTANDING left. But who will remove the mis? It takes maturity to remove the mis.