EcoFlow Wave2 Portable Air Conditioner - Cooling & Heating (Junk)

The unit no longer powers on when connected to an outlet. It operates normally for heating and cooling when connected to the battery.
All accessories are included.
- Duct Ends A, B, C
- Cord Keeper
- Window Panel
- Exhaust Ducts D, E
- Drain Hose
As a result of attempting DIY repairs, three cracks have appeared. Please check the photos. Until two weeks ago, it worked normally when plugged into an outlet. Last week, it suddenly stopped powering on from the outlet, and although I am a novice, I disassembled it slightly. In the end, I could not identify the cause, and the symptoms did not change after reassembly. Although I reassembled it, there are some areas that show amateur work.
Please repair it if you can and use it.
I received it from the person who purchased it two years ago, the month before last. I used it for about a month without any problems. It's possible that I unplugged the cord before turning off the power.
The battery is not included.
No claims, no returns, please.