Waiving the fines for visit visa overstay due to financial difficulties

My mom came to the UAE on a visit visa. Her visa is issued from Abu Dhabi. Now, she overstayed by over a year and the amount of fines is huge and accumulating.

I don't have this amount to pay to legalize her status and let her leave the UAE when the lockdown is over.

Is there a way to waive all the penalties and not only reducing them due to severe financial difficulties?