That deal closed in q1 of this year and, like most deals where the smaller company buys the bigger one it was highly leveraged. It's not a good time for them to have a liquidity problem and that's exactly what this situation has given them. They essentially borrowed 4 billion dollars and have no money coming in. They furloughed two thirds of their staff.
Now, if the world goes back to somewhat near normal soon it will be fine, but if it doesn't cash flow is a serious issue and I don't see government's rushing to bail out ticket scalpers and the EU has gotten pissed off with Viagogo already before this.