Menu extensions no visible in paper ui

hi,

Extension menu isn’t visible in PaperUi and Hadmin/extension have an error when it get the list.

Some help?

In Resp API:

Error 503 Server Unavailable.

{
“date”: “Mon, 18 Dec 2017 09:44:31 GMT”,
“cache-control”: “must-revalidate,no-cache,no-store”,
“server”: “Jetty(9.2.19.v20160908)”,
“content-length”: “319”,
“content-type”: “text/html; charset=ISO-8859-1”
}

Do you mean the Add-ons menu?

Try Clear the Cache