It comes up errors, when the words are Chinese characters.

[binlidaily]

It comes up errors, when the words are Chinese characters, like this:

Could you please make it support the other language, such as Chinese?

[wookayin]

This is a python2 problem. An easiest workaround is to fix the script filter as

-python papers3.py "{query}"
+python3 papers3.py "{query}"

where python3 should be in your normal PATH. One may want to hardcode the path /usr/local/bin/python3 if it is installed from homebrew, as usual.