I am using TinyMCE editor on CiviCRM events, while I am trying to add the Images, they are refusing me to upload the images. How can I fix the error as given below:
Sorry, due to an error, we are unable to fulfill your request at the moment. You may want to contact your administrator or service provider with more details about what action you were performing when this occurred. You must be logged in with proper permissions to edit, add, or delete uploaded images. Return to home page.