The door of the house was blocked with chewing gum, and the property management of the community was ignored. How can I protect my rights and interests?

This property is really difficult to manage, because the person who blocked your lock cylinder should have a contradiction with you. It is probably your neighbor, the people in this community, and the property cannot be effectively prevented. If you know who it is, you can find the neighborhood Committee or the police station. If you don't know who it is, you can install a camera in front of your house and hide it.