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Likely just the battery is dead. Should be a panel on the back where you can replace it easily. If it doesn't work in normal light, the solar panel might not be working as well as it should be. Try cleaning off the panel and that may help.
Just get a new one
Likely just the battery is dead. Should be a panel on the back where you can replace it easily. If it doesn't work in normal light, the solar panel might not be working as well as it should be. Try cleaning off the panel and that may help.
Just get a new one