You have entered an array as the argument to a non-array function. This kind of problem can occur, for example, if you forget to use brackets (the required syntax items for an array) to enclose an array.
Mnakwenda safu kama hoja kwa kazi zisizo safu. aina hii ya tatizo inaweza kutokea, kwa mfano, kama wewe kusahau kutumia mabano (required syntax vitu kwa ajili ya safu) uambatanishe safu.