Step 1: Open terminal and run this command to unload the time champ file
launchctl unload ~/Library/LaunchAgents/com.snovasys.timechamp.plist

Step-2: Go to applications select Time Champ or svcvtt application and move to bin

Step-3: Click on Go and select computer option

Step-4: Click on Apple and go to users

Step-5: In users, select the mac username and go to Library and then logs, in Logs search for folders/files related to time champ

Step-5: In Library folder, select Application Support and search for com.snovasys.timechamp folder and move it to bin

Step-6: Open bin and empty the bin
while uninstalling if it shows the file already running then go to the activity monitor and kill the time champ or svcvtt