UE4 Laucher freezing at start

Hi there, I’ve updated the UE4, and I saw that the UE4 editor also had an update today. But now, I can’t open my editor! It freezes at the beginning. I’ve already tried the -http and -OpenGL command, I’ve already uninstalled and installed it again and nothing! Please, can anybody help me??? I really need this!

here is my log file link text

Thanks