Those are scam sites. Do not download, do not install.
The ONLY known and working ROM is stock KitKat 4.4.2.
the sd-card kept turning up notifications about either being corrupt or unexpectedly removed.
Some days I keep putting in the sim-code during the day (three-four times) hours apart.
And it keeps randomly telling me to make sure I close all the lids, while it isn't connected to anything.
First two issues suggests some mechanical problems with SIM/SD slot contacts.
Third issue is related. There are no sensors in port covers, so warning may be just fired when SIM/SD card looses contact and phone thinks port was opened.
Such issues were never reported before AFAIK.
Which ROM version do you have?
I upgraded to V23, rooted the phone, tweaked it up a lot and now it rocks.