Tracker Domain Error after update to 4.9

[compgeniuses (Martin Bhuong)]

I am getting the below error aftr updating Matomo to V 4.9
WARNING: /plugins/TrackerDomain/TrackerDomain.php(106): Notice - Undefined index: url - Matomo 4.9.0 - Please report this message in the Matomo forums: https://forum.matomo.org (please do a search first as it might have been reported already) (Module: MultiSites, Action: index, In CLI mode: false)

[heurteph-ei (Philippe)]

Most of the time, when such kind of error occurs (missing index or table column), the source of the problem is an unfinished update…
Have a look at:

Mysqli prepare error: Unknown column 'login' in 'where clause'

Thanks everyone for your help. I was able to fix this issue yesterday by running the core update command (sudo php /var/www/html/matomodir/console core:update). @Naser_Aslam I believe there were some database changes that the update fixed. Thank you.