I lost my USB storage after installing Resurrection Remix Lollipop 5.1.1

Hello Dear Experts!
I installed Resurrection Remix Lollipop 5.1.1 on Samsung Galaxy S2 (GT-I9100).
After installation I lost my USB storage. I cannot see my USB storage in Settings-Storage & File manager. Anyone please help me...
I will be very thankful
Please...Please....Please :crying: :crying: :crying: :crying: :crying: :crying:

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