unable to start APEX properly from some Cloud´s instances

Summary

When hittin gthe link to open APEX development tool, the CLoud is sending a message error that says "There is a problem with your environment.."

Content

Once I tried to enter Oracle APEX, thorugh The Cloud site or the Link gotten in the email, we are getting a popup window with this message:

"There is a problem with your environment because the Application Express files have not been loaded. Please verify that you have copied the images directory to your application server as instructed in the Installation Guide. In addition, please verify that your image prefix path is correct. Your current path is  (it should contain both starting and ending forward slashes, such as the default /i/). Use the SQL script reset_image_prefix.sql if you need to change it."