Job not running, appears to be stuck (w)

ping

If the job as a "(w)" this means that it's waiting to be executed by the system crontab. It's a flag appearing very often and it doesn't mean there is a problem by itself.

Check the "last execution time" of that job. If it's right (the job has been executed at the right time or near it), everything is ok.
If not, probably you have a problem on the system crontab. Check INSTALL.txt in elysia_cron module (or look at Drupal system crontab installation help).