I got an error and it showed "error" near sitemap link

User_garyI submitted my file sitemap.xml to to Google sitemap several times, but every time (please describe the action here which caused the error. Was it an error from sending the file, or trying to use it?) it got an error and it showed "error" near the sitemap link.

Please correct my sentences.

Actually the system is that once we upload our sitemap file, Google reviews it and gives us the status. I had no problem while uploading my file, and it had the status "pending" at that time. Also there was message something like that "It may take several hours for the Google to review it, please be patient". So I forgot about that for a few days and then again I logged into the Google sitemap to