Can't see Oracle connector

Unable to see oracle db to connect. Using instal from .jar file. I moved ojdbc.jar file to plugins folder as it sayed in instruciton , but unfortunately i don't see oracle in the list of connectors. What do i do wrong?
thank you!

Hi @Andrey.Tyurin
The file is either called ojdbc8.jar or ojdbc11.jar depending on the version you downloaded.
https://www.metabase.com/docs/latest/administration-guide/databases/oracle.html

my file is called ojdbc8.jar. But it doesn't help. where is possible problem here?

@Andrey.Tyurin
Post "Diagnostic Info" from Admin > Troubleshooting
Post the ojdbc version you are using.
Make sure the ojdbc8.jar file is readable by the process running Metabase.