The error displayed is;

So I updated Bitbucket from 5.15.0 to 6.9.1 a few weeks ago via .bin file, but search has not been available since.
On review of support material;
https://confluence.atlassian.com/bitbucketserverkb/troubleshooting-steps-for-bitbucket-server-code-search-827125334.html
The 'service atlbitbucket_search status' returns no results, as there is no /etc/init.d/atlbitbucket_search file. Likewise, on review of the /etc/init.d/atlbitbucket file there is no provisioning of search with this either.
Furthermore, when I run;
ps aux | grep *elasticsearch*
as the root user no results are returned.
I am looking for how to re-initiate the search feature within Bitbucket server.