Why can't I load gazebo successfully？

[SZTU-cjjjj]

After starting active_recon_gazebo simulation_bunny. My gazebo has crashed and I can't load the rabbit model.Whether to open the model is related to the network, gazebo can open quickly after closing the network, but still did not successfully load the model.
My operating system is ubuntu20.04 ros noetic.

[StarRealMan]

Sorry for the late reply. Maybe you can try download the models needed by gazebo startup localy to your gazebo model path (defalt: ~/gazebo/model).
It can be downloaded here: https://github.com/osrf/gazebo_models