Orbot ( 0.2.3.10-alpha-1.0.7-FINAL) connection error

Orbot was working fine . now it refuses to connect and displays a working status and the following errors .

D/Orbot ( 3435): Attempt: Error connecting to control port: /data/data/org.torproject.android/cache/control_auth_cookie (Permission denied) D/Orbot ( 3435): java.io.FileNotFoundException: /data/data/org.torproject.android/cache/control_auth_cookie (Permission denied)

I am using a samsung i9100 on a stock rom and Orbot version 0.2.3.10-alpha-1.0.7-FINAL

Trac:
Username: TBA001

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