CMDBuild Forum

Problem with upload option

Hello everybody, I’m a begginer , i have a fresh instalation of openmaint version 2.1-3.3.1 running on ubuntu 20, but i have a problem when i try to uplods documents or pictures, i get this error:

com.google.common.util.concurrent.UncheckedExecutionException: org.cmdbuild.exception.DmsException: unable to open cmis repository, caused by: org.cmdbuild.exception.DmsException: unable to open cmis repository, caused by: org.apache.chemistry.opencmis.commons.exceptions.CmisConnectionException: Cannot access “http://localhost:10080/alfresco/api/-default-/public/cmis/versions/1.1/atom”: Conexión rehusada (Connection refused), caused by: java.net.ConnectException: Conexión rehusada (Connection refused)

What can I do to solve this issue?
Thank you