Why is nothing showing up in django-debug-toolbar?

Question

Django

When the page loads, the following is displayed instead of the data:
The data for this panel is no longer available. Please reload the page and try again.
Reloading the page doesn't change anything. Still nothing is shown.
UPD
I found the solution myself, suddenly someone needs it.
Changed the settings to the following:

DEBUG_TOOLBAR_CONFIG = {
    'RESULTS_CACHE_SIZE': 100,
    'SQL_WARNING_THRESHOLD': 2000
}