do not use default address, flash message and redirect back.

suchwow/routes/post.py

@@ -99,7 +99,8 @@ def create():
                 wallet = wownero.Wallet()
                 account_index = wallet.new_account()
             except:
-                account_index = 0
+                flash("Suchwow wallet is fucked up! Try again later.")
+                return redirect(request.url)
             post = Post(
                 title=post_title,
                 text=request.form.get("text", ""),