That used to happen with me but I could log-in...try this:
1: Go here and Download the file
2: Right click on the .rar file you downloaded
and click on 'Extract files...'
and then choose the following path:
If you use Aeria Ignite:
I really hope this can fix your issue.
If this didn't fixed the issue don't hesitate and reply again on this thread!
If this fixed your issue come here aswell confirming it fixed the issue.