I tried this one first

cd .cache/tracker
-sh: cd.cache/tracker: not found
rm -f *.db
-sh: rm -f *.db: not found

It didn't work so I did this one next.

tracker-processes --hard-reset
sh: tracker-processes --hard-reset: not found
/etc/osso-af-init/tracker.sh start
Starting Tracker...Initializing trackerd...failed!