It can take a few minutes for your pool to display on the UI after creation. If you created your pool on a timer, you can check its status on the swap interface: inputting the base and quote tokens will display a countdown in place of the swap button. - don't hesitate to share that countdown with your community.
Tip: You can quickly show created pools by ticking "show created" at the top of the list.
Pool already created error
A pool already exists for this token pair. No need to create a new pool, you can to the existing one.
Other errors / your question is not answered in this FAQ.
No worries, you can join the CobaltX or for 24/7 support! CobaltX's community managers will be more than happy to help you.