This is what managed to get me some relief from the error state maze. Since I couldn't edit, delete or anything other than start/stop which produced errors continually.
What I did was to 'deactivate' each workflow, start each 'deactivated' workflow and let it complete, which presents a 'success' result(go figure).
Once out of the error state, I edited each one without changing any of the configuration and saved.
Once completed, I activated them again and all was well.
I hope this helps someone else as it is quite an aggravating situation.