Teradata Studio Express - response (5) by fgrimmer

The Teradata log file is located in your workspace in the Documents/SQLA folder. It is in a .metadata folder so you will need to open the SQL Folder using Terminal window.
cd Documents/SQLA/.metadata/Teradata
The log is called teradata.log. Let me know if any exceptions in the log.
Try to delete your workspace folder (Documents/SQLA) and restart Teradata Studio Express. It will create a new workspace for you.