The following error might be thrown during SXA module package installation. It means that additional SXA client translations failed to install.
ERROR Error loading data. Exception: System.IO.IOException Message: The process cannot access the file 'C:\sites\sxa\Website\temp\dictionary.dat' because it is being used by another process. Source: mscorlib at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath) at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy, Boolean useLongPath, Boolean checkHost) at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize) at Sitecore.Globalization.DefaultTranslate.Load()
Follow the Sitecore Experience Platform Client Translations Manual to install the required translations manually. You can find translation files under the \temp\SXAtranslations folder.