Welcome to the Orchid Board!
First, it probably wasn't being watered enough. This species needs water all year. It needs a lot in summer, and less in winter, but it should not dry out completely. I would think once a week is not enough in a heated home.
Many orchids have very seasonal growth patterns, especially this one. When you repot at the wrong season you damage roots. The plant may not be ready to grow new roots for months. Wait to repot most orchids until new roots are just beginning to form. And don't cut parts off sick orchids. They were still storing water. The pot it is in is of good size now. Don't repot this plant again before spring 2022 or 2023.
For now keep this plant moist, but not soggy. Don't let it get completely dry. It is a sturdy species, so it has a good chance of surviving.
As spring progresses it should make new growths from the base. Take care not to let it dry out at that point. Eventually the growths will form new roots. Water heavily all summer from that point on. Fertilize regularly when it's in growth - there is time to read about that here, so I won't discuss it. It may continue to form new growths from the base through the summer.
Next fall the growths will top out with 2 or 3 leaves. Stop fertilizing when growths are mostly mature. Reduce watering for the winter but don't let it go completely dry. If you want it to flower it needs about 4 - 6 weeks in winter with nights of 55F or below. It will take temperatures just above freezing, but don't risk it. Some people think you can get flowers without low temperatures by keeping it dry all winter. It doesn't work, and you've already found out what happens if you keep it too dry in winter.
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