All credentials were sent to you yesterday through your form and e-mail. The reason for urgency is that we need to take forms live, but without guaranteed end result of having the data on pdf’s we can’t do that.
An immediate workaround is with a confirmation from the user to use (map) the same Formidable signature field for each of the PDF signature fields, as it is likely the number of signatures is causing a timeout that will not be easily fixed.
However, we are unable to login to your server using /wp-admin/, please reply with the correct url for your WP login screen and we’ll take a look.