Transmission

Hello community.

I downloaded Transmission 1.71 for OS X.4.11,
and ran it for 5 days, smoothly.
Today, Transmission won't launch, instead,
Today, the software declares, this version cannot run
on this OS.

I downloaded 3 previous OSX.4 versions from OLD APPS website,
none of them will launch, they all declare the same statement as above.
How do I troubleshoot this quirky behaviour ?
Grovelling for help here !
regards,
Jim Brunswick Toronto Canada :

The last version to run on 10.4 is version 1.54. Nothing later will run on 10.4.

When you say "OLD APPS website", what are you referring to?

We provide download links for versions supporting obsolete operating systems here:
https://trac.transmissionbt.com/wiki/PreviousReleases