I got new screen for my pc and i need help

I got new screen for my pc and i have issues with picture

All colores are massed up and i see champs minions and other stuff duo

For Example i see 2 Zed or 2 Cannon minions

I can send u pictures on discord

discord tag : 𝕿𝖍𝖊𝖀𝖓𝖋𝖔𝖗𝖌𝖎𝖛𝖊𝖓#4448