Si aparece un ícono que indica “No data to show” es porque esa gráfica no tiene datos en el lapso de tiempo que tienes configurado.
Puedes probar a buscar una gráfica que tenga datos cambiantes constantemente como una gráfica de paquetes de red e intentar enviar esta por correo.
Si te llega correctamente no es problema del envio si no de la gráfica.
Si no te llegan datos en esa gráfica tampoco, habría que revisar que tengas Chromium correctamente instalado y que no esté dando ningún error en el fichero www-error.log del php-fpm.
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To provide the best experiences, we use technologies like cookies to store and/or access device information. Consenting to these technologies will allow us to process data such as browsing behavior or unique IDs on this site. Not consenting or withdrawing consent, may adversely affect certain features and functions.
Functional
Always active
The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network.
Preferences
The technical storage or access is necessary for the legitimate purpose of storing preferences that are not requested by the subscriber or user.
Statistics
The technical storage or access that is used exclusively for statistical purposes.The technical storage or access that is used exclusively for anonymous statistical purposes. Without a subpoena, voluntary compliance on the part of your Internet Service Provider, or additional records from a third party, information stored or retrieved for this purpose alone cannot usually be used to identify you.
Marketing
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