My Chest are disappeared

Hello i had 12x Epic Chest and 1 Rare Chest i went to the campaign mode and wanted to open them but then my tablet has chrashed and when i went again in dungeon quest the chest werent there so i looked in messages but they werent there can you help me bring these back because i worked hard to get em i have a screenshot of the chest for proof and i tell you my account name if you reply me

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