Stay Petition on Maintenance has been pending in High Court since 2019 November

I filed a Stay Petition and an Appeal in High Court, against a Family Court's order dated April 2019, ordering me to pay a maintenance amount of Rs 50,000 per month from the date of the petition in June 2009 onwards. My application came up for admission in High Court in June 2019 and was ordered by HC to serve notice to Respondent. Subsequently, it got listed in Nov 2019 but my Advocate failed to attend and the HC ordered that "in case the learned counsel for the appellant does not appear on the next date, this case shall be dismissed for non-prosecution". The case did not get listed again till now. The online status shows that my Appeal and Stay Petition are still pending. I have been paying maintenance of Rs 12,000 per month since 2009. I neither have sufficient income nor assets to pay Rs 50,000 per month from back date of June 2009 onwards. I got depressed due to the court's order in 2019 and later got infected with covid in 2021 and did not follow-up on this case till now. 1. Please let me know if I can approach HC to take up the pending Stay Petition? 2. If I submit my Income Tax Records, Bank Statements etc., to prove my financial status, will I be able to get relief against paying Rs 50,000 from back date of June 2009?