PROJECT NOT UPLOADING

Hello! I am making a project for my schools annual Invention Convention. It takes place May 23, 2019. I have a perfect model, and a perfect code. For some unknown reason, when ever I try to upload my project, it shows the usual "Sketch uses 2208 bytes (6%) of program storage space. Maximum is 32256 bytes.
Global variables use 52 bytes (2%) of dynamic memory, leaving 1996 bytes for local variables. Maximum is 2048 bytes." Then, I wait a good 5 seconds, and the message "Problem uploading to board. See http://www.arduino.cc/en/Guide/Troubleshooting#upload for suggestions." I have gone through ALL of the troubleshooting links, but non seem to work. If you guys have any way you think this problem could be fixed, it would make me really happy. THANK YOU!

In the File>Preferences select verbose option during upload.
Upload again in the lower error window there is a button “copy error ...”
Copy this error and paste it between the code tags.

Archiving built core (caching) in: C:\Users\ARIESN~1\AppData\Local\Temp\arduino_cache_40090\core\core_arduino_avr_uno_0c812875ac70eb4a9b385d8fb077f54c.a
Sketch uses 4920 bytes (15%) of program storage space. Maximum is 32256 bytes.
Global variables use 301 bytes (14%) of dynamic memory, leaving 1747 bytes for local variables. Maximum is 2048 bytes.
C:\Program Files (x86)\Arduino\hardware\tools\avr/bin/avrdude -CC:\Program Files (x86)\Arduino\hardware\tools\avr/etc/avrdude.conf -v -patmega328p -carduino -PCOM6 -b115200 -D -Uflash:w:C:\Users\ARIESN~1\AppData\Local\Temp\arduino_build_90684/S.T.E.M_2019.ino.hex:i 

avrdude: Version 6.3, compiled on Jan 17 2017 at 12:00:53
         Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
         Copyright (c) 2007-2014 Joerg Wunsch

         System wide configuration file is "C:\Program Files (x86)\Arduino\hardware\tools\avr/etc/avrdude.conf"

         Using Port                    : COM6
         Using Programmer              : arduino
         Overriding Baud Rate          : 115200

You’ve missed out on the last part of the error message.