//start of your code
var teststringsave = "";

//rest of your code until this part

if (vChannelCatch == client.channelId("Skynet Logging")){
    var teststring = "";
    if ([vMyName].indexOf(vUserSent) !== -1){
        vtesting = vMessageCatchUp.substr(0, vMessageCatchUp.indexOf("*"));
        teststring = vMessageCatchUp.substr(vMessageCatchUp.indexOf("*") + 1);

        if (vtesting == "?command"){
            client.network().sendChanMessage(channel, "Hello World " + teststring);
            testbool = true;
        }
    }

        //DEBUGGING
    if (vMessageCatch == "print string"){
        client.network().sendChanMessage(channel, teststringsave); // posts previous teststring
        vAutoRespond = false; //Threw this in cos it kept looping lmao
    }
    //DEBUGGING SECTION END

    if ([teststring].indexOf(vUserSent) !== -1){ //FAILS COS TESTSTRING IS EMPTY
        if (testbool == true){
            client.network().sendPM(client.id(teststring), "testing");
        }
    }
    teststringsave = teststring;
}