Maybe the file format of your story is not compatible with the loading system. Check if it meets the required format specifications. Another possibility is that there's a server issue on the hosting side. You could wait for a while and try again later.
One possibility is that your story doesn't meet the platform's content guidelines. Another reason could be that the upload process has some technical glitches on the server side. Try again later or contact the support team for assistance.
It could be that your story doesn't meet the platform's guidelines. Check for things like word count, content restrictions, or formatting requirements.
It might be that the video size is too large or there's an issue with the app or platform you're using. Check if you have the latest version of the app and make sure your video meets the platform's requirements.