I made a mistake. I changed the Admin Base URL and now I can't access the admin site.
In the core_config_data
table,I edited the following rows in the database:
Scope:"Default"
and Path:"admin/url/custom"
Select the NULL
checkbox and save.
Scope:"Default"
and Path:"admin/url/use_custom"
Change value from 1 to 0
and save.
I deleted the following rows:
Scope:"Stores"
and Path:"web/secure/base_url"
Scope:"Stores"
and Path:"web/unsecure/base_url"