Uninterruptible Power Supply Device

The device is semi-new; I used it for about 4 months for a PC, and it developed an issue where it makes a sound as if the electricity is cut off, although it's not. I don't know what the problem is. The device cost me around 2000 riyals. Anyone interested in buying the device to repair it or benefit from its components, such as batteries or others, can contact the number provided (WhatsApp only). I hope we communicate and agree, God willing. I repeat, the device is semi-new. Contact via WhatsApp only Contact via WhatsApp only Contact via WhatsApp only