"problem" Bandwidth Usage Graphs

[MOHAMMED]

Hello,

Please, after restart my server, Bandwidth Usage Graphs it is not working and is not updated
stop on this
https://ibb.co/YWvY0P3

Previously, it worked without a problem
Example from another server
https://ibb.co/5r0rt2C


How do I solve this problem??, And it happened in two servers, The same problem