Basic debugging is to check the console, go to your node (within the application) and check “Data” to see if the join requests are listed. If not there are at least two possible causes, no reception (in an urban environment 1 km might be too much, depending on antenna and type of buildings between you and the gateway) and the keys… (use MSB format and make sure the Device EUI matches)
Regarding your second message, please learn how to include code in nicely formatted way.