Brown Spot And Reoccurring Acne After Laser Smart Xide Normal?

I'm 26 years old and I did a Smart Xide laser treatment a years ago.My skin was good (i didn't need it), I just did it to try. Result a year after I developed light brown spot on my face and my acne that I had when I was 18-19 came back badly. I can't go under the sun because I always feel like the brown spot are getting darker even with a 60 SPF lotion. Is it normal that I develop dark spot after the treatment? Will I be able to tan again my face? Will the spot stay there forever? Help me pls.

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