[question] recently purchased my first Floyd rose guitar, it goes horribly out of tune after a single use of the tremolo. What’s going on?

It’s a schecter Damien and when I unboxed it and played for 5 minutes the g string slipped out of the bridge where it was clamped in. I replaced the g string and retuned it but using the tremolo causes it to still go out of tune super fast. I’ve really only used fixed bridge guitars, so not sure what’s happening here since the guitar is brand new.