Check the log file at '/usr/local/flamenco/instances/USDA-FNDDS_-_19-09-05/log.txt' for more details. Here are the last few lines:
Plug-in /usr/local/flamenco/webware/COMKit cannot be loaded because: Required op sys is ['nt'], but actual op sys is posix. Loading plug-in: TaskKit at /usr/local/flamenco/webware/TaskKit Loading plug-in: UserKit at /usr/local/flamenco/webware/UserKit Loading plug-in: PSP at /usr/local/flamenco/webware/PSP Loading plug-in: WebUtils at /usr/local/flamenco/webware/WebUtils Port 21600: [Errno 98] Address already in use. Port 21601: [Errno 98] Address already in use. Port 21602: [Errno 98] Address already in use. Port 21603: [Errno 98] Address already in use. Port 21604: [Errno 98] Address already in use. Port 21605: [Errno 98] Address already in use. Port 21606: [Errno 98] Address already in use. Port 21607: [Errno 98] Address already in use. Port 21608: [Errno 98] Address already in use. Port 21609: [Errno 98] Address already in use. Port 21610: [Errno 98] Address already in use. Port 21611: [Errno 98] Address already in use. Port 21612: [Errno 98] Address already in use. Port 21613: [Errno 98] Address already in use. Port 21614: [Errno 98] Address already in use. Port 21615: [Errno 98] Address already in use. Port 21616: [Errno 98] Address already in use. Found an available port: 21617.