Thingspeak connection to arduino yun via WiFi

I follow the configuration the following arduino yun tutorials, but I couldn't read the data from arduino yun to thingspeak. I watch a video which says that we should change the REST API ACCESS item. but we reset it to open(means 0), but the configuration wizard reminds us that there is a error for the reset operation. And we couldn't change this item. I want to know if this configuration will result into the connection failure between thingspeak and arduino yun.

Thank you.

The following is the error when we configure WiFi.