How do I remove this layer so that I can replace it with another one?

My web map contains a layer that is no longer available, and an error appears when I load the map.

I can't reorder a layer in the map's contents.

The map legend is different from the legend I created for my feature layer.

I can't edit the geometry of a feature in an editable feature layer.

Time does not appear in the date field.

Dates are formatted differently throughout the map.

The date and time in a pop-up do not match the date and time in the underlying data.

When searching for layers to add to a map, not all of my organization's layers are listed in the search results.

Searching for layers to add to a map, only web layers are

Why can't I join an organization using my GitHub account?.

I know I was invited to join an organization, but I didn't receive an invitation in my email inbox folder.

I received an invitation to join an organization, but I get an error when I try to join.

I cannot invite or add members from an ASCII-encoded comma-separated values (CSV) file containing non-English characters.

When I invite members, I can't set their role to administrator or one of my organization's custom roles.

I requested a subscription for ArcGIS Online, but I am not the person who will administer the subscription for my organization.

I can't activate my subscription for ArcGIS Online.

When I try to access some capabilities in my organization, they are not available.

When I sign in, I get an error that my SAML certificate has expired.

Why can't I set a credit budget for storage, premium content, and app-related activities?.

Why can't I turn off anonymous access to my organization?.

Why can't I change my organization name?.

I've encountered a maximum limitation when using the website.

For solutions related to creating an account, signing in, or updating your account, see Account troubleshooting.

Arcmap update