[MCL-12300] I can't log in to my Account in the Launcher

I can't log in my Minecraft account in the Minecraft Launcher.
If I try to log in to Technic launcher, it shows

"An error occured ehile reaching authserver.mojang.com"

I copied the URL https://authserver.mojang.com/authenticate from the launcher log and pasted it in my browser (Firefox)

It shows this:

error	"ForbiddenOperationException"
errorMessage	"Invalid arguments"

I tried so much to solve it, but nothing worked.

(turn off Firewall; turn off Antivirus; reinstall Java; reinstall Minecraft Launcher; deleted .minecraft file directory; reinstalled Java and Minecraft Launcher again)

Write if I should send more info.

I want to play Minecraft again please