Packaging Multiplayer project

Hi, I have made my first game multiplayer and single player with which I want to test by playing with my friends but I am failing in the packaging again and again. My game is a based on blueprint
Help me

Read all the red text errors in your output window (add it to the editor from the Window dropdown if it isn’t there yet) after building/packaging your game. Start with the first error and find out what it means, then troubleshoot it and/or ask questions about it online to fix that one, then move on to the next one and so forth until they are all resolved.