Combinator with left and right rules

[devilsadvocate]

I am trying to execute this on the command line:

./hashcat64.bin -a 1 -m 100 test.hash english.txt english1.txt -j ./rules/dive.rule -k ./rules/dive.rule --session=test --potfile-path=test.pot

I get this:

ERROR: english.txt: empty file

What am I missing here?

Any guidance is appreciated.