Thanks for your reply!
I had read the documentation. I had no problems to create the user, I could also get an access token, executing the URL from a browser.
This happens before any other, that is, when the OAuth module is loaded, I found those errors in all OpenMRS pages.
You can observe in the screen “Buscar Paciente(s)” (Patient search) the “input text” for the search, is not loaded. Does not this happen to you?