Fatal Error on Launcher Startup

[BrettS0]

Every time I open the ftb launcher, it stops on "downloading pack data" and the log says there was a fatal error. The error message is

From Console: [Fatal Error] :1:50: White spaces are required between publicId and systemId.
From Console: [Fatal Error] :1:50: White spaces are required between publicId and systemId.
Error while updating map info: org.xml.sax.SAXParseException; lineNumber: 1; columnNumber: 50; White spaces are required between publicId and systemId.
Error loading texture pack info: org.xml.sax.SAXParseException; lineNumber: 1; columnNumber: 50; White spaces are required between publicId and systemId.
Opening main window
Unhandled exception in Thread[AWT-EventQueue-0,6,main]: java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
From Console: [Fatal Error] :1:50: White spaces are required between publicId and systemId.
Error while loading launcher update info: org.xml.sax.SAXParseException; lineNumber: 1; columnNumber: 50; White spaces are required between publicId and systemId.​

I have deleted all my ftb files and launcher and redownloaded everything. When I do this, it works for the first launch but once I exit and relaunch it the same error occurs. I haven't seen any similar threads with solutions and I'm not sure how to fix this besides deleting and redownloading all of FTB every time I want to play.

 

[BrettS0]

I tried uninstalling and reinstalling java. The crash report now tells me

Unhandled exception in Thread[AWT-EventQueue-0,6,main]: java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
Error while updating map info: javax.net.ssl.SSLHandshakeException: java.security.cert.CertificateException: No subject alternative DNS name matching dist.creeper.host found.
Error loading texture pack info: javax.net.ssl.SSLHandshakeException: java.security.cert.CertificateException: No subject alternative DNS name matching dist.creeper.host found.
Error while loading launcher update info: javax.net.ssl.SSLHandshakeException: java.security.cert.CertificateException: No subject alternative DNS name matching dist.creeper.host found.​

 

[BrettS0]

Solved! I believe this issue had to do with my browser firewall not trusting creeperhost. I whitelisted the site and it appears to be solved.

 

[Camden Henke]

Hi my friend is having the exact same error messages as you. He is having trouble whitelisting creeperhost in his browser. How did you go about doing that exactly?

 

[livinggolem]

I've been having the same issue but don't know how to whitelist the site. I tried whitelisting the domain in chrome's settings but that doesn't seem to help. Is that not the correct way to do it?

 

[Uberjr25]

every time I start the game is says An unsuspected issue occurred and the game has crash.