UPDATE: We have been notified that this problem has been resolved. (July 30, 2019)
From the Canadian Pharmacists Association:
As a result of our recent release of RxTx Mobile v6.1, we are experiencing technical difficulties that are temporarily preventing some customers from accessing the mobile app. We are currently working on a solution to implement a new process so that individuals may resume access as soon as possible. In the meantime, RxTx online can still be accessed through the Dalhousie Libraries: https://dal.ca.libguides.com/rxtx
The Canadian Pharmacists Association apologizes for the inconvenience.