[2022] Cryptic Clue from Garden Update

This morning we've found a puzzle hidden in Monday's update! There's a hidden message hidden in the Garden camp. To find it you need to:
1) Locate a Sunken Box in the water, under a root, behind the new compost bin.
2) Telegrab it
3) Use the wet note you get on the Washing Line to dry it out

That's as far as we've gotten so far. The note has two codes on it we need to decrypt. Catch up and join in to help in solving!