Your request couldn’t be completed. Please try again in a few minutes

​After launching the Exchange admin console(Exch2013), when you try to access the database, you get this error:
Your request couldn’t be completed. Please try again in a few minutes

resolution:
launch adsiedit, go to Configuration -> Services -> Microsoft Exchange -> Administrative Groups, databases,
Review the databases and delete the new databases added. Try accessing the EAC again