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i installed nagstamon using this command

sudo apt install -y nagstamon

and i got this error while running using

nagstamon 
QLayout: Attempting to add QLayout "" to StatusWindow "", which already has a layout
QLayout: Attempting to add QLayout "" to StatusWindow "", which already has a layout
QLayout: Attempting to add QLayout "" to StatusWindow "", which already has a layout
unable to decode. returned string: b'<!DOCTYPE html>\n<html>\n\t<head>\n\t\t<meta http-equiv="X-UA-Compatible" content="IE=Edge"/>\n\t\t<meta charset="utf-8" />\n\t\t<meta name="viewport" content="width=device-width, initial-scale=1">\n\t\t<meta name="Author" content="Zabbix SIA" />\n\t\t<title>Warning [refreshed every 30 sec.]</title>\n\t\t<link rel="icon" href="favicon.ico">\n\t\t<link rel="apple-touch-icon-precomposed" sizes="76x76" href="assets/img/apple-touch-icon-76x76-precomposed.png">\n\t\t<link rel="apple-touch-icon-precomposed" sizes="120x120" href="assets/img/apple-touch-icon-120x120-precomposed.png">\n\t\t<link rel="apple-touch-icon-precomposed" sizes="152x152" href="assets/img/apple-touch-icon-152x152-precomposed.png">\n\t\t<link rel="apple-touch-icon-precomposed" sizes="180x180" href="assets/img/apple-touch-icon-180x180-precomposed.png">\n\t\t<link rel="icon" sizes="192x192" href="assets/img/touch-icon-192x192.png">\n\t\t<meta name="csrf-token" content=""/>\n\t\t<meta name="msapplication-TileImage" content="assets/img/ms-tile-144x144.png">\n\t\t<meta name="msapplication-TileColor" content="#d40000">\n\t\t<meta name="msapplication-config" content="none"/>\n<link rel="stylesheet" type="text/css" href="assets/styles/blue-theme.css?1594630345" />\n</head>\n<body lang="en"><div class="wrapper"><main><output class="msg-bad msg-global">Class  not found for action problem.view/api_jsonrpc.php.<div class="msg-buttons"><button type="button" onclick="document.location.reload();">Retry</button></div></output></main></div><script type="text/javascript">\nsetTimeout(\'document.location.reload();\', 30000);\n</script></body></html>'
QItemSelectionModel: Selecting when no model has been set will result in a no-op.
Segmentation fault (core dumped)

what should i do

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  • 1
    Please provide some details; you've tagged Lubuntu without release details needed to know what system you are using (modern? legacy?), but also tagged your OS is a phone or mobile running Ubuntu-Touch? Please clarify. (Why would openstack be used on a phone or mobile tablet device? needed explanatory links would be helpful) – guiverc Mar 3 at 1:53

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