Resignation and Work pressure.

It's been a month that I have been resigned and all of a sudden these guys started targeting me and starting giving backlogs that cannot be resolved, all these days we used to close the ticket tagging that defect id, and all of a sudden these guys wants me to resolve those defects that has been not resolved for years, I'm so stressed and feeling torchered, can I know the impact if I don't clear these defects , or will there be any escalations, please suggest on this situation, what I should do.