 No response after runing the sam_server.py

[SAMM INFO] CUDA detected. Waiting for Model ...
[SAMM INFO] Model initialzed to: "vit_h"
[SAMM INFO] Server Online.

the program just stopped after these output,and keep executing the execLooping in line80 sam_server.if i miss someting to start the 3d slicer working on samm extension?how can i fix this?