Could I get a replacement since this does not work and it was a Christmas gift ?

This was bought as a Christmas gift for my daughter and son-in-law to use when they go camping. The box was not opened until July 13, 2019 when they camped. One whole row of lights does not work. I wanted to know if I could get a replacement si ce this does not work and it's the first time it's been opened or used?

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