Cold air driver side/Hot air passenger side? on 2004 Isuzu Ascender

I am having a problem when I run AC hot air comes out of passenger side and cold out of driver side. Is there a cheap fix? I am recently divorced and broke...any free help/instrcution would be appreciated.

Asked by for the 2004 Isuzu Ascender
there is not a cheap fix. possibly one of two issues:

(1) if you have a dual zone control system, it is low on
refrigerant and will need to be evacuated and then recharged.

(2) if you do not have a dual zone system, you have a bad
or leaking blend flap inside the dash
Thanks I appreciate the help.