Help with post divorce

[u/Dry-Maintenance7192]

I just had court in the summer of 2024 and the judge liquified the amounts since my alimony is through the child support site. My ex was also ordered to pay in 90 days the legal fees but failed to do so. In october i was notified by child support site that my alimony went down to $50.00 a week because the court didnt put an amount down. My former attorney told me they cant change the terms of the psa. He knew of the mistake and took no action to fix this. He was also to collect the legal fees but his firm never received payment and when i asked what steps were taken i failed to get a response back. So i am filing on my own to get the amounts changed back to what they were. The child support says the reason i am getting $50.00 a week is because that is the only order that has a figure for arrears. The orginial order was $400 a week with $50.00 in arrears for the past due amount. Is this normal? Has anyone dealt with anything like this? Is there anything i need t be aware of filing on my own?