I get the message: http status 503 failed to send request nicepage when i try to save or preview

Hi, I have set up a simple contact form and choose submit to Joomla form. I have then set up the SMTP settings as they should be but it will not send the message. It says "Unable to send your message....

When I upload my exported site to wordpress I get this error: The import archive contains one or more invalid files. Please make sure the names of your XML files don't contain punctuation marks like...

Hello. The following error message is displayed in the Nicepage settings. ”The active theme has a version lower than the plugin version. Please update the theme too.” I don't know how to deal with...

I am getting an error exporting html on browser version