Android Application Using Firebase Database Keeps Crashing When Launching?

So I am currently trying to store user details into a database, however the program does not mention any errors upon execution, but the application keeps on crashing when trying to

Solution 1:

try adding multidex support

defaultConfig {
    // Your previous stuffs
    multiDexEnabled true
}

for more info you can visit this thread. This can be helpful too: https://stackoverflow.com/a/39831657/7237222