It won't let me enter my server

Hello, I actually speak Spanish, but I use the translator, // I had a problem, it won't let me enter my server, (Mundo ESPAÑOL/ESP si te portas bien te doy admin👽) since I told my friends, wait, I'm going to add you, and when I logged back in, I It said private world, since I put it in private before, I am very sad, please solve it