Print error rather than exception in log for expected AttributeError

mycodo/controllers/controller_function.py

@@ -150,7 +150,12 @@ def initialize_variables(self):
  def call_module_function(self, button_id, args_dict, thread=True, return_from_function=False):
  """Execute function from custom action button press."""
  try:
- run_command = getattr(self.run_function, button_id)
+ try:
+ run_command = getattr(self.run_function, button_id)
+ except AttributeError:
+ msg = f"{button_id}() not found in module. Module may currently be initializing or may be missing the function."
+ self.logger.error(msg)
+ return 1, msg
  if not thread or return_from_function:
  return_val = run_command(args_dict)
  if return_from_function: