While you are uploading photos/documents with the media manager to a property or listing, you receive on of the following error messages:
Code: 102, Message: error upload file to s3
Code: -300, Message: IO error
1. Those errors typically appear if your browser looses the connection to the Propertybase photo servers. Try again a few minutes later.
2. Make sure that the photo you are trying to upload does not have any special characters. Try renaming them.
3. Make sure that the photo is not bigger than 20 MB. (There is no way to increase the amount of data for attachments)