Minecraft launcher error (TLauncher)

Reporting a problem of the caught error on TLauncher but does not work. We are sorry for the inconvenience.

The bug
When launch the TLauncher: When disconnect the ethernet cable result is minecraft launcher background, then connect the ethernet cable but given a minecraft launcher error. Closed TLauncher window and launched as TLauncher gives a error message.

Steps to reproduce
1. Open the TLauncher in desktop.
Exception occurred in tlauncher website.

Screenshot of a glitch