If you were really trying to help, you at least could/would have asked for logs, or something else instead of repeating like a parrot that its not your fault, which I am clear it is not by the 1000 times you say it.
You already posted your log, and THAT precise error means only one thing: something like a firewall is blocking online access to Simbrief, no other reason for THAT specific message.
And, there was no reason to embarrass yourself to show everybody you are unable to express yourself in a civil matter so, because of that derogatory term, you gain well deserved BAN on this forum. This is not the place for insults, you should be ashamed of yourself.