Error when loading strain design file

[Paulocracy]

Traceback (most recent call last): File ".../CNApy/cnapy/gui_elements/main_window.py", line 769, in load_strain_designs self.show_strain_designs(solutions) File ".../CNApy/cnapy/gui_elements/main_window.py", line 756, in show_strain_designs self.sd_sols = SDViewer(self.appdata, solutions, with_setup) File ".../CNApy/cnapy/gui_elements/strain_design_dialog.py", line 1663, in init self.solutions = pickle.loads(solutions) ModuleNotFoundError: No module named 'numpy._core'