Excerpts from Luis Moises Rojas's message of 2017-09-15 09:23:17 -0400:

Everyday in the morning, i have to run this script: Koha-rebuild-zebra -f -v -b -r {Koha instance}

if i do not do this: we can not see any data, not search is found, etc. Why?

It could be that the zebra server is not running. Try this: https://wiki.koha-community.org/wiki/Koha_on_Debian#Anacron