It is logged off when I click on some menu options

It is logged off when I click on some menu options.

I can not access some menu options,

When I log into the platform and click on “PLAYER> PLAYER” from the menu the platform prompts me for username and password again.

If I return to the previous screen in the browser I can access other menu options, ie it was not logged out, but when I click on the “PLAYER> PLAYER” option, the password is always requested.

To be able to access normally, I have to clear the browser cache, or access in anonymous mode.

This error does not always occur in the PLAYER option, it changes frequently, and can occur in more than one menu option at the same time.

At this moment it is happening in:
"PLAYER> PLAYER"
"ADVANCED> LOG"

I use version 1.8.11 cms web install.
Chrome 72.0.3626.121
Windows 10