When uninstalling a service Zabbix gives a warning

[skotty]

I had urBackup installed on a server. Then I installed Zabbix on said server.
Today I uninstalled urBackup because we are replacing it by another backup service.

After I uninstalled urBackup, Zabbix gives me a warning:
Average PROBLEM Windows services discovery: "UrBackupClientBackend" (UrBackup Client Service for Backups) is not running.

Well, should not be an issue I thought and went for the "Update" to close the problem with "Close problem".
"Close problem" is greyed out so I can't check that box.

How would I go about to get rid of this warning the correct way? I can disable the trigger but that just feels unlogical.
I'm all new to Zabbix and I don't have much knowledge yet so I don't want to handle a warning the wrong way just yet .

Many thanks in advance

[liusir]

Because your trigger doesn't have the option to allow manual closure of the issue, you can't manually close the issue that arises