APEX login page does not respond

[big]

Hi,
On APEX 20, when connecting and click on Sign in button nothing happens.



Seems that the page hangs.

Any idea?

Thank you.

[ErmanArslansOracleBlog]

I don't know how you end up with this.. I mean I don't know the history of this environment, but;
ensure your db & listener is up. Ensure that you haven't got a weirdness for apex connections in the listener.. (by checking the listener log)
We need to check the logs in the apex side as well..