Hi JuanRS,
I am not familiar with iOS at all, but I believe you do not need fuzzylite-static.a in your iPad because your application is being statically linked. Hence, your application and fuzzylite library are both be contained within the same executable file.
Can you try excluding fuzzylite-static.a from installation to the iPad? Perhaps it could be some sort of security error? I am also guessing that you are not compiling your application within the iPad, but just copying to the iPad.