As Corey stated in his post, the backend upgrade has caused sign-ins to stop working temporarily. As for after, simply use the username and password of your forum account.
Shell scripts are scripts that are meant to be ran on a linux or unix computer/server. Due to their nature (they can access the filesystem and other sensitive or protected information and locations) they are prohibited on the free servers. I believe this type of suspension is zero tolerance...
The email server should work at all times, unless there is some scheduled maintenance. If it happens again, simply pop back here and I'll ask staff to investigate.
You should check in the spam folders of those inboxes, and ask if their email provided has black-listed x10Hosting. Some have, due to abusing users. (We changed a policy to prevent that from happening again)
The thing is that passports identify you as a citizen of a certain country, rather as then as yourself. Now the country you are visiting knows things like your criminal history because countries share that information. If there were no information sharing, the country you are visiting would...
It could be your FTP client. What client are you using? Have you tried filling in a bug report? Are you using the latest version? What did you do before it started acting up?