Cyanogen 11 Can't make calls (Samsung Galaxy S3 SGH-T999L T-Moblie)

I recently installed CyanogenMod 11 on my Galaxy S3 SGH-T999L for T-Mobile (d2mtr).
It won't let me make phone calls or send messages with it. As soon as I start a call, it immediately says "Call Ended". All of my texts fail to send.

I would like to find a way to fix this, or get an original Android 4.3 Firmware (d2mtr) to flash back on it (preferably the original Firmware).

Another option would to restore a backup I made, but when I try to restore it, it says "MD5 Mismatch". I have tried to find backup and delete the unnecessary MD5 files (like I was told to do on other forums), but my but my backup is hidden in the files by ROM Manager.

I need help quick!!! Thanks in advance!

New Yuphoria recieved without cyanogen

Hi Friends

I recieved, new Yuphoria from Amazon, which doesnt have cyanogen OS Installed, and the model No. is YU5010A, I am having trouble with Rooting, can anyone give the link for Rooting steps and, is it fine Installing Cynogen os Build which was made for model YU5010? currently Yu5010A is running on Stock Android with no customizations.

I am very disheartened without Cyangen OS, Please help