Running test through piped translation test,
$ echo "Agua" | apertium ca-eo
Error: Cannot open file 'Error: Cannot open file '/usr/share/apertium/apertium-eo-ca/ca-eo.automorf.bin/usr/share/apertium/apertium-eo-ca/ca-eo.autobil.bin' for reading.' for reading.
apertium-tagger: can't open SERIALISED_TAGGER file "/usr/share/apertium/apertium-eo-ca/ca-eo.prob"
Try 'apertium-tagger --help' for more information.
I/O warning : failed to load "/usr/share/apertium/apertium-eo-ca/apertium-eo-ca.ca-eo.antaux_t2x": No such file or directory
Error: Could not parse file '/usr/share/apertium/apertium-eo-ca/apertium-eo-ca.ca-eo.antaux_t2x'.
Error: can't stat file '/usr/share/apertium/apertium-eo-ca/ca-eo.t1x.bin'.
I/O warning : failed to load "/usr/share/apertium/apertium-eo-ca/apertium-eo-ca.ca-eo.antaux2_t2x": No such file or directory
Error: Could not parse file '/usr/share/apertium/apertium-eo-ca/apertium-eo-ca.ca-eo.antaux2_t2x'.
Error: Cannot open file '/usr/share/apertium/apertium-eo-ca/ca-eo.autogen.bin' for reading.
Error: Cannot open file '/usr/share/apertium/apertium-eo-ca/ca-eo.autopgen.bin' for reading.
I/O warning : failed to load "/usr/share/apertium/apertium-eo-ca/apertium-eo-ca.ca-eo.t2x": No such file or directory
Error: Could not parse file '/usr/share/apertium/apertium-eo-ca/apertium-eo-ca.ca-eo.t2x'.
I/O warning : failed to load "/usr/share/apertium/apertium-eo-ca/apertium-eo-ca.ca-eo.t3x": No such file or directory
Error: Could not parse file '/usr/share/apertium/apertium-eo-ca/apertium-eo-ca.ca-eo.t3x'.
While package has following files,
ls /usr/share/apertium/apertium-ca-eo/
apertium-eo-ca.ca-eo.antaux2_t2x apertium-eo-ca.ca-eo.t1x.translit apertium-eo-ca.ca-eo.t3x ca-eo.antaux_t2x.bin ca-eo.automorf.bin ca-eo.t1x.bin ca-eo-translit.autobil.bin ca-eo-translit.t1x.bin
apertium-eo-ca.ca-eo.antaux_t2x apertium-eo-ca.ca-eo.t2x apertium-eo-ca.ca-eo.t3x.translit ca-eo.autobil.bin ca-eo.autopgen.bin ca-eo.t2x.bin ca-eo-translit.autogen.bin ca-eo-translit.t2x.bin
apertium-eo-ca.ca-eo.t1x apertium-eo-ca.ca-eo.t2x.translit ca-eo.antaux2_t2x.bin ca-eo.autogen.bin ca-eo.prob ca-eo.t3x.bin ca-eo-translit.autopgen.bin ca-eo-translit.t3x.bin
Let me know if more information is needed.