Conflicts among God's people are bound to happen. It's one of those realities of living in the already/not yet existence. So we might as well get over the notion that somehow we can get past that. It isn't going to happen.
So what do we do about it? Scripture is loaded with help here, and we can begin with the Lord's Prayer (or, the Our Father Prayer). We're to refuse to judge and condemn others, and we're to forgive each other. So this must begin with us, personally, and out from that become an ongoing practice of community.
Sin does need to be dealt with gently and humbly in community, by those who live by the Spirit. It shouldn't be swept under the rug, or ignored. It needs to be addressed, and when necessary in any case, the work ongoing.
In all of this in our community life as God's people, we need to work at thinking the best of others. For some of us this may not be so hard, at least in reference to most people. When we're around each other very long, we often begin to see the good, the bad and the ugly that exists in each other's lives. We see that our ideal of who the other is, is simply not the entire story. Of course the older we get the more this should not surprise or move us, unless we never look into the mirror of our own lives.
We need to think the best of others. This seems to be in rhyme with the love spelled out for us in 1 Corinthians 13 that is to more and more characterize our lives. And this should be based, not on our confidence in another person so much- at least not as the basis of that confidence- but in our faith in God and his faithfulness and goodness to us in Christ. God is at work; he's on our side. He's there to help us in making us holy and good.
God is bigger than the things we don't like about each other. We should take those to him in prayer. And seek to be sensitive to our own faults and shortcomings.
I feel like I've left plenty unsaid, and that more should be added to this. What would you like to add for us, here? Or any thoughts.