Compressor was not accepting FCP batches, so deleted it thinking I could download again from App Store - nope!

I still am running a Mac Mini (late 2014) on Mac OS X 12.7.6

For the last few weeks I have had problems exporting any batch from FCP to Compressor, trying various fixes suggested on this forum and elsewhere. Thought perhaps re-downloading it from the App Store would fix whatever was causing the problem. Anyways, the App Store did not provide for a download without payment of $49.99, but more importantly, stated that I would need Mac OS X 13.5, which my poor Mac Mini is incompatible. I have checked my Time Machine backups and do not see Compressor to bring forward to the present. So am I totally hosed here? Suggestions anyone?

Thanks!