A module which was created by old version of Modeler was imported to my project. However it contains errors - either come from the new version of modeler, or I need to update to fit the new modeler.
But is it possible that I can simply exclude/hide/deactivate/disable it temporarily before I fix the errors? I try to keep it in the project for a while for some reasons.
Why not export the module to a .mpk package. Delete it from your model and import it as soon as you are ready to solve the errors?