Restore the "search" on old forum

[Svankmajer]

Hi. 

I have an old forum which I recently updated to the newest version. 

Most things look fine, but it seems like the search bar doesn't work. 
When I try to search for a word it says "0 results". 

Above it is a blue bar saying "The search index is currently processing. Current results may not be complete."

Now, it has stayed like that for a long time. For months I believe.
How can I help the seach index to get to "completion"? If thats how this works?

[Marc]

You need to ensure that tasks are running, otherwise the rebuild will never complete. We would suggest setting this up as a cron job on your server. Please see the following guide on this