Hi
As of 5.0.1 and up Aikau is its own separate project, but several of the previous share translations now exist in the Aikau project instead of in the Share project. Therefore those sources must be imported into the crowdin project.
After this has been done, the next step would be to update the build scripts. For now, it is not possible to build a language pack compatible with multiple versions of Aikau (post 5.0.1). Each build must specifically point out which version of Aikau that the translation should work for. Alfresco is working on a fix for this (
https://issues.alfresco.com/jira/browse/ALF-21376)
Thanks,
Marcus