Losing materials, and gear every time i sign in

Every time i log into my realm on pocket edition mine craft i loose all my loot, i lost 10 full stacks of iron and 1.5 stacks of gold and 46 diamomds. The mext day i loose all the iron ore and diamonds i found to replace it. The next day i sign on and all my diamond gear and tools in my inventory is gone. I pay for realms service. Too loose all my ores/bars/gear every time i sign out is insane. I will end subscription if this is not addressed