iPawind is one of a number popular signing services has recently experienced downtime due to server upgrades. 

The upgrades has caused them to cease registration of new customers for around 3 months. In a statement on their website the service provider says “Recently, We had to take all servers down for upgrade due to high demand, And that process took us one week to achieve which caused many troubles with impatient customers. As a result, We’ve closed new registrations.”

“up-to 1-3 months for registrations to be opened again.”

The service says that existing customers will remain unaffected. Thankfully anyone looking for a signing service can still use the massively popular iPwnstore

Signing services allows customers the ability to install apps that are not usually allowed on the AppStore. You can read the full statement from iPawind here