Are you logged in as sasboot or a normal user?
You may wish to examine the network trace to see which service is returning these messages to the UI, and check their logs for further details. SAS Technical Support can help examining these, but this SAS Note describes how to look at the network trace and gather a HAR file.
Usage Note 60268: Using the web browser developer tools to investigate issues in SAS® Web Applications
https://support.sas.com/kb/60/268.html
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Greg Wootton | Principal Systems Technical Support Engineer