TypeError: 'str' object is not callable

[TKroos18]

I tried to run playground.ipynb. And I got these error and I do not know what happened.

OpenAI API call took 6.37s
planner" generated code
context: "objects = ['bin', 'rubbish', 'tomato1', 'tomato2']"
objects = ['bin', 'rubbish', 'tomato1', 'tomato2']
Query: throw away the trash, leaving any other objects alone.
execute("grasp the rubbish")
execute("back to default pose")
execute("move to the bin")
execute("open gripper")
done

Error executing code:
objects = ['bin', 'rubbish', 'tomato1', 'tomato2']
execute("grasp the rubbish")
execute("back to default pose")
execute("move to the bin")
execute("open gripper")
done

TypeError Traceback (most recent call last)
Cell In[5], line 2
1 instruction = np.random.choice(descriptions)
----> 2 voxposer_ui(instruction)

File ~/Graduation/VoxPoser_Pro/VoxPoser/src/LMP.py:146, in LMP.call(self, query, **kwargs)
144 import pdb ; pdb.set_trace()
145 else:
--> 146 exec_safe(to_exec, gvars, lvars)
148 self.exec_hist += f'\n{to_log.strip()}'
150 if self._cfg['maintain_session']:

File ~/Graduation/VoxPoser_Pro/VoxPoser/src/LMP.py:189, in exec_safe(code_str, gvars, lvars)
187 except Exception as e:
188 print(f'Error executing code:\n{code_str}')
--> 189 raise e

File ~/Graduation/VoxPoser_Pro/VoxPoser/src/LMP.py:186, in exec_safe(code_str, gvars, lvars)
181 custom_gvars = merge_dicts([
182 gvars,
183 {'exec': empty_fn, 'eval': empty_fn}
184 ])
185 try:
--> 186 exec(code_str, custom_gvars, lvars)
187 except Exception as e:
188 print(f'Error executing code:\n{code_str}')

File :2

File ~/Graduation/VoxPoser_Pro/VoxPoser/src/interfaces.py:100, in LMP_interface.execute(self, movable_obs_func, affordance_map, avoidance_map, rotation_map, velocity_map, gripper_map)
98 if avoidance_map is None:
99 avoidance_map = self._get_default_voxel_map('obstacle')
--> 100 object_centric = (not movable_obs_func()['name'] in EE_ALIAS)
101 execute_info = []
102 if affordance_map is not None:
103 # execute path in closed-loop

TypeError: 'str' object is not callabl