A deadlock occurs when two or more tasks permanently block each other by each task having a lock on a resource which the other tasks are trying to lock. Both transactions in a deadlock will wait forever unless the deadlock is broken by an external process. This can happen for several reasons, and can happen on any type of server including sql servers. To avoid having an indefinite period of locking, Altru has built in a graceful way to stop the deadlock and provide an error message with the instruction to rerun the transaction. 

Try the following: 
  1. Exit out of Altru
  2. Click Tools, Delete Browsing History
  3. Click Delete all
  4. Cancel out of the Internet Browser
  5. Relaunch the browser and log into Altru
  6. Try to rerun the process