[TASK] Add FAQ item for reconnect project in Crowdin (#5484)

* [TASK] Add FAQ item for reconnect project in Crowdin

* Apply suggestions from code review

Co-authored-by: Chris Müller <[email protected]>

* Update Faq.rst

---------

Co-authored-by: Lina Wolf <[email protected]>
Co-authored-by: Chris Müller <[email protected]>

Author: 3 people

Documentation/ApiOverview/Localization/TranslationServer/Crowdin/Faq.rst

@@ -135,6 +135,32 @@ Crowdin configuration. Navigate in your Crowdin project to
 click on the :guilabel:`Edit` button and disable the :guilabel:`Push Sources`
 checkbox.
 
+..  index:: Crowdin; Reconnect your project
+..  _reconnect-your-project:
+
+My integration stopped working and I saved the setup again. Now, the language files are shown twice?
+----------------------------------------------------------------------------------------------------
+
+If there was an attempt to connect another repository to the project before, this
+might happen. In this case, to prevent overwrites, Crowdin renames the existing
+master branch to [repo_name] master and it allows you to keep [repo_name] master
+and [another_repo] master in the same project, but if you delete all existing
+integrations, the system forgets about the multi-repo logic in the project, and
+it will upload just master branch to Crowdin
+
+What to do:
+
+- Delete newly uploaded master
+- Rename [repo_name] master branch in Crowdin to master
+- Pause/resume GitHub sync, so the system has updated existing old files in the master branch
+
+The reason why the integration disconnected previously - it creates :file:`crowdin.yml`
+configuration file by default, but (probably) at some point it was renamed to
+:file:`.crowdin.yml` (mind the dot at the start) in the repo, so integration was suspended as it couldn't locate the
+original configuration file.
+
+When you re-connected the repo, you specified :file:`.crowdin.yml` as configuration file
+name, so now it should work.
 
 ..  index:: Crowdin; Migration from Pootle
 ..  _migrate-from-pootle: