Is this SSL problem is caused by the code or something else?

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C#

SSL

Ever since I made my discord bot I get the same error over and over again, no matter what I do in the code! I get this error message when I use httpclien/webclient and I get it even when I don't use it!

Quote:

SSL connection could not be established, see inner exception

Authentication failed, see inner exception. System.Private.CoreLib

The the message received was unexpected or badly formatted

I have no idea what causes this problem and I couldn't find anything about this error in particular.

[Command("avatar")]
       public async Task Avatar(SocketGuildUser mention = null)
       {
           try
           {
               if (mention is null)
               {
                   string url = Context.User.GetAvatarUrl(format: ImageFormat.Auto,2048).ToString();

                   EmbedBuilder builder = new EmbedBuilder();
                   builder.WithTitle("Here you go!").WithImageUrl($"{url}");

                   await ReplyAsync($"", false, builder.Build());
               }
               else
               {
                   string url = mention.GetAvatarUrl(format: ImageFormat.Auto, 2048).ToString();
                   EmbedBuilder builder = new EmbedBuilder();
                   builder.WithTitle("Here you go!").WithImageUrl($"{url}");

                   await ReplyAsync($"", false, builder.Build());
               }
           }
           catch (Exception ex)
           {
               Console.WriteLine(ex.Message);
               if (ex.InnerException != null)
               {
                   Console.WriteLine(ex.InnerException.Message + " " + ex.InnerException.Source);
               }
               if (ex.InnerException.InnerException.Message != null)
               {
                   Console.WriteLine(ex.InnerException.InnerException.Message);
               }
           }

       }

And even with this simple code I got the error message twice and I really do not see what's wrong.

What I have tried:

I tried using http client authentication but the error still remains.
And it's completely random, like 1-3 time out of 20 it happens but the other times it's completely fine and works just as you'd expect