Depending on your operating system, Mockoon's settings and log files are located in different folders.
Mockoon's settings are always stored in your operating system's user folder:
c:/Users/{username}/AppData/Roaming/mockoon/storage
{PORTABLE_EXECUTABLE_DIR}/mockoon-data/storage
~/.config/mockoon/storage
~/snap/mockoon/common
~/Library/Application Support/mockoon/storage
Mockoon's logs are located in the following folders:
c:/Users/{username}/AppData/Roaming/mockoon/logs/app.log
{PORTABLE_EXECUTABLE_DIR}/mockoon-data/logs/app.log
~/.config/mockoon/logs/app.log
~/snap/mockoon/common/logs/app.log
~/Library/Logs/Mockoon/app.log