Phone restarting when trying to set alarm clock

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http://forums.androidcentral.com – Greetings, I am using an Aoson S100 smartphone. The phone is with Android 2.3.4 Gingerbread. I have the phone since July, but for the past week it has a strange bug: The Android automatically restarts when i try to set a new alarm clock. When I choose a default alarm, the phone restarts by itself again when the time comes for the alarm to set off... I read in some threads about alam clock issues with Android 2.3.4 and they all advised for a Factory reset to be initiated. Yet, I am a total noob on using such old versions of Android and I don't want to lose all my stuff and contacts from (HowTos)