Should I initiate contact to fix a broken friendship?

Had a falling out with a guy friend who I also did business with; it’s been 6 months since we’ve spoken. We even unfriended each other on FB😜 ... Last week I heard through a mutual friend that something good happened to him that my business was affiliated with so I congratulated him via my biz FB page and I saw that he “liked” it. Wondering if I should send an email to see if he wants to fix things?
Should I initiate contact to fix a broken friendship?
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