Can not add new display

After updagre to 18.12 from 18.11 i can not add new display.
In log POST /xmds.php?v=5&method=submitLog HTTP/1.1" 500 294 “-” “Mozilla/4.0 (compatible; MSIE 6.0; MS Web Services Client Protocol 4.0.30319.42000)”

Error de la solicitud con el mensaje de error:

There has been an unknown error with XMDS, it has been logged. Please contact your administrator.

What’s the environment you have please? Docker or not?

The log message you give there doesn’t relate to registering a new display. Its from an existing Player trying to send in log messages.

You need to be sure that the CMS URL and key are correct, and that you are using the correct protocol (ie you’re using http or https depending on how the CMS has been configured).

Hi
parameters Is correct

Please can you tell me about the environment. You haven’t answered that, and without that information I can’t help you.