You are having an issue with the game on a computer, and you want to send us your save file in your support ticket.
Here are the steps to locate the save file on your computer:
Windows
Press Windows Key + R to open the "Run" window
Paste the following in the "Open" field: %AppData%\..\LocalLow\Clever Endeavour Games\Ultimate Chicken Horse
Press Open
Find the saveData.uch file and copy it to your desktop before sending it to us
Mac
In Finder, choose Go > Go to Folder
Paste the following in the field: ~/Library/Application Support/Clever Endeavour Games/Ultimate Chicken Horse
Press Go
In this folder, you will find the saveData.uch file; copy it to your desktop before sending it to us
Linux
Right click on Ultimate Chicken Horse in the Steam Library
Click on "Browse Local Files"
Navigate to UltimateChickenHorse_Data and you will find the saveData.uch file; copy it to your desktop before sending it to us
Once you have located the file, you can attach it to your support ticket. Do not send it on Discord, Twitter, etc.