I just checked for curiosity. The employer can sue for damages they'll have to show.

But there's some additional factors here. If the employer misses salary payments, then they're in breach of that employment contract, and unless they can't fix the situation really soon, that's grounds for immediate termination.

Also in Finland, salaries earned in a normal employment are backed by the state for up to 3 months of missed payments (the state will then try to collect from the employer). So it's relatively safe for an employee to stick with a sinking company. Just get that CV polished and start warming up the network.

It seems to me that they can sue for 3 months salary. Or the amount of days employee does not work. However in this situation I would imagine they have more immediate concerns so might not get around even to that.