My world was somehow corrupted after I left and had "Bad Omen" on.

My world somehow got corrupted I remember this part of the name from memory: "None of your buesness on this map", I think that's the whole name but I left because my I-Pad needed to charge and I had Bad Omen on because there somehow were Illagers, (or were they called Pillagers?) just two of them there. A crossbow one and a leader. After I killed the leader soon after I left and when I came back, it was corrupted and wouldn't let me on.