you for reaching out on the community and telling us about your issue. Quicken 2007 does not work with Big Sur or Catilina as both of these OS versions do not support 32 bit applications anymore. If you were to get a new Macbook I would recommend updating to the latest version of Quicken.
If you have any other questions please let us know.
It looks like you're new here. If you want to get involved, click one of these buttons!