Nagvis | invalid data "admin.profile"

Hello everyone,

I am doing my apprenticeship with a company which they’re using Nagios Tools for their Network Supervision.
While everything’s working fine with Nagios Core and NagiosQL, we can’t login to Nagvis service. It only returns an error message: "Invalid data in “/usr/local/nagvis/etc/profiles/admin.profile”.
Then I opened the admin.profile file through the path he says but he’s completely empty. Should something be written on it ? I’m pretty sure the login and password I typed are both correct.

I hope someone may can help me to resolve my issue.

Thank in advance,


Please provide version information about Nagios and NagVis.