Oracle Error: ???no listener, no extended error???

[Anonymous User]

Original User: Jamal432@gmail.com

Oracle Connection Error: �??no listener, no extended error�?�

After the oracle enterprise geodatabase successful created and connected, I got the message below:

[ATTACH=CONFIG]20704[/ATTACH], [ATTACH=CONFIG]20705[/ATTACH]

What might be the issue?

Thank you

Best

Jamal