Data transfer to new device problems

Hello!

i have the following problems with my iPhone 5:

1. I cannot save a copy to iCloud (there is enough place but when there is 2-3 minutes before finishing I receive message that copy cannot be saved)

2. I cannot neither reach AppStore nor update my apps through the phone (only using iTunes)

3. I cannot transfer all the data through smartswitch android using cable. It is written that data is encrypted (and it was not) and when I put password for encryption- it doesn't accept it.

thank you very much for your help!