Server constantly crashing.

Hello, me and my friends were playing minecraft 1.12.2 with the Ice and Fire mod added. I accidentally teleported to the Y-700 axis instead of teleporting to Y-70. After that, the server crashed and we can't play in the server anymore since it always kicks us. Any work-arounds around this problem?

Thank you!

any player joins. Everything was going smoothly until I accidentally teleported to Y-700

Here it is. https://mclo.gs/i73BsD7

Hello, somehow the server is functioning fine now. I'm sorry if I have wasted some of your time. I truly appreciate the quick response!