Hi @filipepimentasilva,
So the context menu was working and then suddenly stopped? Was anything done on the system that may have affected it (new applications/utilities installed, MACOS update)?
Take a look at this post and run through the steps so we can see the output: Finder extension (right-click menu) missing in MacOSX 10.11
Also look at this post, which goes through a known Apple issue with a fix that has addressed a few people seeing this issue with their odrive extensions: Finder extension (right-click menu) missing in MacOSX 10.11