A few days ago, Citrix release a new version of Citrix Receiver for iOS. This version fails on several iOS devices with different iOS versions. Users can login and get their application listing, but as soon as an application is launched, you see the Error 183. On the affected devices you see the following two errors:
German Error messages
German Error messages
Apple devices affected by that problem are listed in the correspondent discussion. Citrix is aware of the problem and announced a bugfix version for the faulty Receiver.
As a workaround, you can install the Citrix Receiver named “R1” which is the old 6.1.5 Receiver from Citrix. They leave it in the AppStore in case of faulty updates.
Update 20.09.2016: The Citrix KB CTX216501 has been updated accordingly.