Schema page breaks after importing a table without create permissions

[ghislaineguerin]

Description

When attempting to import a table into a schema where the user does not have "Create" permissions, the schema page breaks upon returning to it.

Expected behavior

After an unsuccessful import attempt (due to permission error), the system should allow users to return to the schema page without causing it to break.

To Reproduce

1. Attempt to import a table into a schema where you do not have "Create" permissions.
2. After the import attempt, navigate back to the schema page.