[Q] Theme questions topic

I am running Dirty Unicorns 8.1 official and i seem to have problems with some themes. for instance, the scribe theme, i purchased it and had it running on another rom (spirit) but i cannot get it to download onto dirty unicorn. keeps saying something about wrong error code and wont let me load it.... also some icons are staying the same as other themes i have had (Crimson) and not changing back to holo or any other themes i change.... for instance, the phone icon is staying on crimson and not changing to what ever i have chosen.... any info for a noob would be great! :)