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I need some help trying to install the PhotoRec package on a QNAP TS-509PRO. I want to run it to see if I can recover some files I deleted completely. I was able to install and run version 7.1 on a QNAP TS-451 and recover some files but I get an error trying to run it on the QNAP TS-509PRO. It gives me an error saying it cannot run binaries. I assume it's either a hardware or software compatibility issue.
I think I need to run an earlier version but I can't find one.

Can anyone help.

Thanks.