ImImmortalEagleBro

I wasn't really sure where else to put this, so I put it here. I'm trying to upload a file to the New Vegas Nexus. It's a .RAR file containing an .esp file and a .txt file. When trying to upload the files(s), it gives me the error "The file you uploaded was not one of the accepted file types for this upload." Even though it says that .RAR files are supported. Help?