SendPhoto gives Bad request 400

[Ginpachi98]

When I call this function, I get this error:

{"ok":false,"error_code":400,"description":"Bad Request: field "keyboard" of the ReplyKeyboardMarkup must be an Array"}.

Also tried: bot.sendPhoto(chat_id,"https://www.arduino.cc/en/uploads/Trademark/ArduinoCommunityLogo.png","caption", false, 0, "remove_keyboard");

but non seem to help.