Accidentally I erased assignments I have in Canvas. I copied my previous course to the Spring semester. I realized that in my calendar students from the past semester were appearing in the coming up section. I open the "view calendar" and I started erasing the assignments I gave to my students the last semester. When I went back to module I realized that at least three assignments have disappeared. I already corrected those assignments but now they are deleted. Is there a way to recover my assignments? Please help.