1. Please try to change the output path and the temp path in the Settings panel, do not use cloud drive or anything like that. 2. If you are using a NAS path as a directory, please map the Nas path to your Mac first. 3. If you don't have another path to select, please go to the temp path and output path to delete any files or folders that are not needed to try again. 4. Please go to the settings panel of your Mac system, make sure that our software is fully accessible to your hard drive. If you are still unable to solve the problem after using the methods mentioned above, please contact us and our support team will respond to you as soon as possible.