Upgrade issue

[Sainaths]

We have recently  upgraded the BP from 6.8.1 to 7.1.2, everything went smoothly but after that we we are trying to run the process from control we see below error ,Kindly help.

------------------------------
Sainath s
------------------------------

[Neel1]

hello - please check the knowledge base article if you haven't so far

https://support.blueprism.com/en/support/solutions/articles/7000076986-bpe-error-unable-to-establish-communication-with-server-callback-channel-when-trying-to-run-a-proc

------------------------------
Neeraj Kumar
------------------------------