Help needed fast with E-newsletter

Ok so I haven't had a problem emailing using e-newsletter until now. When I really needed a newsletter sent yesterday. Then on my aggrivation trying whatever I could think to get the letter to send. I deleted (wanted to edit so I could copy and paste my lengthy instructions for ordering product by tomorrow 10pm) instead of edited as I was going to copy and paste the content into a regular email blast. Problems needing a solution fast.
1) is it possible to recover a deleted newsletter?
2) Why am I now getting an error box when trying to send an e-newsletter?

I did upgrade to the latest version (which may have been a mistake since it worked before)