I am using the latest Gacacticraft and MicdodleCore with MorePlanets 2.1.12 and when I build tier 4 rocket and tried to travel to Diona game crashed on loading. Since then Crash says its server issue: Exception ticking world
When created new world and traveled to Diona with tier 4 creative rocket I had the same issue
Does anyone know what to do? I dont wanna loose my world and start again
I know, its not wise to dont have a backup

Any crash log provide?

Closing due to inactive.