package com.the_roberto.kittengifs;

public class Config {
    public static final String GIPHY_API_KEY = "Sm1KTXpsWE9pSTBkcQ==";
}

package com.the_roberto.kittengifs;

public class Config {
    public static final String GIPHY_API_KEY = "ZGM2emFUT3hGSm16Qw=="; //a public beta key
}

Update the API key.