catch RuntimeError earlier

This makes it possible to to restart the bot, if there are temporary
server issues.

freqtrade/main.py

@@ -60,6 +60,13 @@ def _process() -> None:
         msg = 'Got {} in _process(), retrying in 30 seconds...'.format(error.__class__.__name__)
         logger.exception(msg)
         time.sleep(30)
+    except RuntimeError:
+        telegram.send_msg('*Status:* Got RuntimeError:\n```\n{traceback}```{hint}'.format(
+            traceback=traceback.format_exc(),
+            hint='Issue `/start` if you think it is save to restart.'
+        ))
+        logger.exception('Got RuntimeError. Stopping trader ...')
+        update_state(State.STOPPED)
 
 
 def close_trade_if_fulfilled(trade: Trade) -> bool:
@@ -254,7 +261,7 @@ def app(config: dict) -> None:
     """
     logger.info('Starting freqtrade %s', __version__)
     init(config)
-    try:
+
     old_state = get_state()
     logger.info('Initial State: %s', old_state)
     telegram.send_msg('*Status:* `{}`'.format(old_state.name.lower()))
@@ -272,11 +279,6 @@ def app(config: dict) -> None:
             # We need to sleep here because otherwise we would run into bittrex rate limit
             time.sleep(exchange.get_sleep_time())
         old_state = new_state
-    except RuntimeError:
-        telegram.send_msg(
-            '*Status:* Got RuntimeError:\n```\n{}\n```'.format(traceback.format_exc())
-        )
-        logger.exception('RuntimeError. Trader stopped!')
 
 
 def main():