Hello BooHyunJang,
This error may indicate corrupted instances of both Collaborator client or Java. It also can be caused by an unsupported Java vendor. Try to follow the steps below:
1. Uninstall the Collaborator client.
2. Launch the command prompt as administrator.
3. Navigate to the location of the Collaborator client installer and run it from the command prompt as below:
the_name_of_the_executable_file -manual
When the client installer is executed with the -manual option, it will ask you to provide the path to the Java location. If you see any exceptions, post them here.
4. Check if the issue exists after re-installing the client.
If the issue still occurs, try to uninstall Java completely, install Oracle Java 1.8, and follow the steps above one more time.