** Is it possible that the water line became clogged from non-use? **
I wouldn't think so.
** when I turn it on, the nozzle spins as usual, but no water sprays out. **
If you're talking about the spray arm, the water spraying out is what makes it spin. It is not motorized.
If the machine is not filling, someone may have to check the water fill valve to see if it is working or not. You can read about the water valves used on appliances at the following link:
LINK > Water Fill Valve Information
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