Anything that can supply a clean 5v with at least an amp should be fine into either USB port of the Vero. A USB 3.0 port on a PC would be a good choice but generic USB power adapters should be fine as well for at least testing to make sure it powers up.
Generally speaking switching power supplies do break down over time so they don’t have a tendency to last for decades like those old heavy power bricks do. That being said most users get a longer life than what you experienced. It is possible that there were environment variables (brown outs, series of smaller power surges, ambient temperature, etc.) that reduced the lifespan.
If you contact firstname.lastname@example.org we can sort this out.
Powering via USB is a good way of testing and ruling out a hardware issue, but isn’t ideal for most use cases because we can only get 0.5A from that.