From 10th of September all of my workflows are showing to be in queued and Starting soon

From 10th of September all of my workflows are showing to be in queued and Starting soon

I need help in understanding this issue as it is impacting our live clients. FYI, we are using self hosted version of n8n. Any help in this regards would be really great.

Do you see any logs in N8N logs? If possible re-run N8N in the debug mode to find out some hints in the logs.

You probably have queue mode enabled and the workers are not turned on.
Also make sure you check the license for these live clients you are hosting stuff for.