[Ciatro]

Greetings from Spain. I have bought a new tablet. I backed up all the files following the instructions and saved them on the sd card. When I opened my new tablet I restored the library following the instructions as well. The files appear in Mobil Sheets, as well as the collections, complete with all the scores they contained. But when I try to open any score I get a black screen and a message saying that the file does not exist (even though it is marked in the collection!). What could be the problem and how can I fix it? Thanks.