HTTP error doesn’t let me upload a track. Changing the browser or using the additional way of uploading (through the 100 market uploader) doesn’t help. How can this problem be solved?
Could you tell us some details about the upload failed? Like some prompts, it’s advisable to provide some screenshots about it.
Maybe there is a network problem with your device, we advise you to check the status of your network, or maybe you can try to change your network temporarily and upload it again.