I’m lost now.
In the original post, you tried to use a “fitProMM2_C.so” shared library (which apparently uses “sqlite3”, but you did not link it against the needed “libsqlite3”).
In your last post, you tried to run an interpreted macro: root fitProMM2.C
Well, in this case, use: root -e 'gSystem->Load("libsqlite3");' fitProMM2.C