Cannot access to groups, devices, alerts, etc.

Hello,

I can't access to any element in Observium but it shows the global statistics, I tried with reboot my server, updated Observium whithout results.

I entered to the DB via console and all the data it is ok.

From the weathermap I test a graph via web and also it is ok.

The devices, ports, processors, etc. don´t load via web. Observium shows it empty.

I need your support, I'm blind to monitoring my network.

Thank you in advance.