Connection Crash and Inventory Rollback

Ive been juicing my map after finding a citadel for like an hour, been corrupting maps till I got one with 680% waystone drop and after all of that preparation I succesfully killed the boss and got 3 fragments and one divine orb. I was very happy and went to clear the map further, cause i needed that node on my way but suddenly I get connection error and inventory rollback. I cant describe how sad and demoralized I am atm. Is there anyway I can prevent that kind of events from happening with me further??