After you recreate Search Service Application or Managed Metadata Service Application, Course Catalog page in REM will show an error warning. You will need to perform the following:
- Go to REM Site Contents > Pages library and delete CourseCatalogSearch page from there.
- Reactivate ELEARNINGFORCE - REM: Publishing site collection feature in REM to recreate Course Catalog page.
- Run Incremental crawl to update SP search index.