So, I am new to this whole github/OpenDroneMap thing. I'm not sure if this is even the correct place for me to post my problems but as you can see from the title, the program is stuck. I followed all the instructions on this page properly but to no avail. Here is where I am stucked at:

When using programs that use GNU Parallel to process data for publication please cite:

O. Tange (2011): GNU Parallel - The Command-Line Power Tool,
;login: The USENIX Magazine, February 2011:42-47.

This helps funding further development; and it won't cost you a cent.
Or you can get GNU Parallel without this requirement by paying 10000 EUR.

To silence this citation notice run 'parallel --bibtex' once or use '--no-notice'.

It has been stucked here for over 6 hours. Any help is appreciated. However, if i followed the instructions on https://github.com/OpenDroneMap/odm-start-deprecated, i am able to get the processed image and open it in MeshLab.