Here is the detailed error:

The project works on my local computer. i am using publish to a file folder and moving the files to the server. When trying to go to the website i get the error provided in the image url.
Thanks for your help in advance
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You seem to have a corrupt sitemap xml file containing null bytes. So as the error message suggests look at the first character of line 215 of your XML file in a hex editor and compare with the working version you have in your development environment in order to try to identify the differences.