Working with multi sites and modules located in sites/all and sites/some_site your module paths could get in problems. So for a fix check you just need to replace paths in your DB like
update system set filename = replace(filename, 'sites/all', 'sites/some_site');and this way all your contrib modules get new path, set for the sites/some_site location. You should do this when you move your modules which are already in system and you have errors and problems with paths shown.