I downloaded the newest version on the website and experienced the same as above. I manually installed libssl1.0.2 and recieved a new error message:
/usr/local/fop2/fop2_server --test
Can't load '/tmp/par-726f6f74/cache-a35acb5df0289fa32b33f893ed3daf7f80bb10e1/fcc760ba.so' for module POSIX: /lib/arm-linux-gnueabihf/libm.so.6: version `GLIBC_2.23' not found (required by /tmp/par-726f6f74/cache-a35acb5df0289fa32b33f893ed3daf7f80bb10e1/fcc760ba.so) at /usr/lib/arm-linux-gnueabihf/perl/5.24/DynaLoader.pm line 187.
at /usr/share/perl5/PAR/Heavy.pm line 123.
Compilation failed in require at /tmp/par-726f6f74/cache-a35acb5df0289fa32b33f893ed3daf7f80bb10e1/inc/lib/AnyEvent/DBI.pm line 75.
BEGIN failed--compilation aborted at /tmp/par-726f6f74/cache-a35acb5df0289fa32b33f893ed3daf7f80bb10e1/inc/lib/AnyEvent/DBI.pm line 75.
Compilation failed in require at script/fop2_server.pl line 23.
BEGIN failed--compilation aborted at script/fop2_server.pl line 23.
Is there any plans to get this working on the Raspberry Pi3 using Buster?