HELP! SERVER IS CRASHING! PLS READ

I might need some help. I accidently gave my friends more than 280,000+ arrows (because my keyboard didn't work), and it completely crashed the server, I got 1800MB of RAM in the server and I can't do anything. I lost so much progress. It was supposed to be my survival world, but nope, I lost everything. Is there any way to remove the 280,000+ arrows that I gave my friend so I can access my survival world back? (I used the /give command). I need help...