TIFF images were not actually used in the Lovely Composer program, and I had a little concerns about the licensing of libtiff distribution, so I manually removed them from the distribution package.
It worked without errors in the development environment (Ubuntu), but that's probably because libtiff was already installed in the OS side in the development environment, and libtiff was actually being referenced somewhere.
We would like to either make libtiff really unrequired, or include it in the package. Thanks for the accurate reporting of the problem!