Edit Public Dashboard

I have a public dashboard and when I try to edit some of the querys that are inside, I always get the same unknown error.

There is nothing that I can do to enter into the query code and change it.

Do I have to stop making the dashboard public in order to edit it?

Hi @Vallistruqui
Post "Diagnostic Info" from Admin > Troubleshooting.
I guess there are errors in the log too, so have a look in Admin > Troubleshooting > Logs.