Not too many bugs

This game just like Samurai vs Zombies Defense 2, but with fewer bugs.

Some problems I've noticed are the following.
1. I sometimes get warnings that my collection has been attacked, but when I go to check it will show that I have nothing that needs to be defended. I could have 3-4 items that need to be defended, but it might show zero items to defend. There needs to be a refresh button because I often have to check back 30 minutes later before it refreshes. Forcing the app to quit then relaunching it might be enough to force a refresh, but it is really annoying waiting for the app to load. Attacking an artifact can force the game to refresh that screen. Right now I see a "5" on the Defenders icon which indicates that I have 5 items to defend. When I go into it I only see one item I need to recover. I can also have a situation where the number on the icon doesn't update right away. for example it was showing a "1", but after I quit and reloaded it showed a "3".
2. I only had one item that needed to be defended. It was a tough battle that I almost lost, but I successfully defended the 500 soul artifact then the game crashed. I don't know if I got the gold or chests I collected, but the game showed that I no longer needed to defend that item. Instead it showed that I needed to recover a 300 soul item.
3. I don't always receive a warning when a collection is attacked.
4. The armor of the Warrior when you upgrade from level 1 to level 2 shows that it is supposed to be 30% and 20%, but when you upgrade it is 30% and 0%. However when you upgrade from level 2 to level 3 it is corrected to 35% and 25%.