Lovelace, ENTITY +1 at reboot

Hi, I have Hass.io installed on debian in a virtualbox on Windows 10.
I have a gauge in lovelace with this config in “lovelace” config file:

“entity”: “sensor.d_link_router_kbyte_sec_sent_5”,

After a reboot of the the virtualbox on windows, the gauge is not working and i must edit “lovelace” file and add 1 to the value of ENTITY:

“entity”: “sensor.d_link_router_kbyte_sec_sent_6”,

Why?