Server stopped for no reason once and now stops as soon as it starts

So me and three of my friends were playing All The Mods 3 Lite on a server I was hosting and at a specific point the server stopped for no reason. Trying to start the server after that stopped it immdeiately. (log here https://mclo.gs/iCyFSFy ) This isn't the only time that has happened - it also happened with a different world of ATL3L and Skyfactory 3. I'd also like to point out that we've only recently been experiencing these problems recently as we've done Agrarian Skies, ATL3L and Skyfactory 3 in the past with this not happening at any point.