Not able to open the logs under User Profle | Logging.
“An unexpected error occurred while attempting to complete your last operation and any unsaved settings may have been lost. You may report this issue to Technical Support using one of the methods below”
Clicking click the Technical Information link the error below is show:

This is caused by a duplicate variable. See image below:

Deleting the duplicate variable should resolve this issue.
If the above resolution does not resolve the problem, please Contact Support.