Help needed for Cancer Patient

In Nov 25 2016 my mother, this beautiful woman was diagnosed with stage 4 NSCLC . Well in May 2017 Her disability was cut off by clerical errors on her healthcare provider, and Sedgweck insurance not giving her proper information. Due to her Chemotherapy she has become forgetful. We have struggled done I've taken time off work to be her caregiver, in her only child, we have no real family to turn to. We are now facing not making rent, behind on all our other bills. Since all this I have seen her progress turn due to depression, worry, If we can make rent, get caught up till disability gets straightened up we would be extremely thankful. This is hard for both of us to do, but we have no choice. This does not include the fact her employer is now making her pay for her own medical coverage.