Help Can't upload pictures and app problems

[ChloeFox]

So I'm using a WileyFox Swift which just updated the other day to Cyanogen OS 13 (13.0-ZNH0EAS2NH) , so Android Marshmallow 6.0.1, and I've came across a lot of problems. My main one was that before I updated, I used an SD card on my phone, and moved all my apps to that. Now that I've updated, I had to wipe my memory card in order to use it as internal storage, but i put the files back on it. All my apps were gone, which wasn't exactly a problem, I just redownloaded them. But I had a lot of problems with apps crashing when I tried to open them. One app in particular is one I use regularly called Peach, and everytime I quit peach it logs me out, which it didn't do before the update, or on any of my other devices.
I've also found that when I try to post pictures from my device to peach, I get the error

-2: 60012a1b-28ea-4f11-934a-9638950e39fe: open failed: EROFS (Read-only file system)
​

Also (sorry if it's too many problems in one post), after I've used the device in landscape mode and it goes back to portrait, the notifications bar when i pull it down is magnified? I can still read it, but its almost as if it's zoomed in so that the borders are cut out.