Cycle Ablan D largest hybrid size from Darajati hybrid bike

Hello, I have a two-year-old hybrid bicycle from Darajati in Riyadh, largest size as shown in the pictures 20 inch ❌ The rear gears do not change properly; I haven't tried adjusting them because I don't care, but probably they can be fixed ❌ The front gears don't shift smoothly, sometimes you need to shift twice for it to change Reason for selling: the weather isn't allowing me to use it. Specifications are in the picture, price is 700