Error: rpccompat: dial tcp 127.0.0.1:7778: connect: connection refused

You are welcome!
You may also migrate this node to a new HDD: How do I migrate my node to a new device? - Storj Node Operator Docs
As many noted, if you would do so, you may reduce the allocation below the usage and it will stop accept new data, so migration should go quicker.
But I guess your node cannot even start normally, so you may migrate even using a cp command while your node is stopped.

Hello, were you able to resolve this?