Internal Storage Issue

[swishy250]

Hey guys, I recently decided to buy Asphalt 7. My phone storage was 1.6 GB at the time but the game was 1.66 GB to download. I just decided to download and thought I could just clear out the rest later. But when I looked at my phone, it said low on storage space so I cleared out some stuff but the download restarted so I canceled the download and thought my internal storage would go back to normal but it just stayed at 159 MB. How can I fix this?

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