@X115moparz @BUTTMUNCH_23 what is your antivirus?
Also try to add an exclusion https://plutonium.pw/docs/antivirus/
Last thing read this https://plutonium.pw/docs/system-requirements/
@Math1x You're 100% sure you don't have any antivirus or software that could mess with the game?
If yes then try to repair your game https://plutonium.pw/docs/repair/
If it doesn't work then I don't know
@ARGA07 your IDNS provider or ISP might have blocked/hide the Plutonium domains. This is, to my knowledge, just a shared "blacklist" with other providers. This just mean they hide the website from you but the IP is still reachable so simply changing DNS to a DNS that censors less stuff fixes it.
My guess is that Plutonium is listed as a piracy website to some providers
@XanOo make sure the name and password are correct, case sensitive.
Log out of the forum and log in again and make sure to copy both the nane and password in a notepad and it is logs him in paste it in the launcher