When using https://kagi.com/assistant/ feature and type this sentence
日文文法「辭書形＋かけ」是什麼意思？
The result is always An unknown error has occured
It should work normally to answer my question without displaying unknown error.
I think I am using some characters which can't be parsed directly.
When I changed my question to "日文文法「かけ」是什麼意思？", it worked normally.
Also it works normally if I turned the "Web Access" off.