Changes don't remain

[Stendor]

Good day!
Would you like to help us..
We installed full sonata-package (// INSTALL full SP) and have got access to the web interface(dashboard). But when we сhanged some settings in sonata dashboard and tried to to apply this settings, we pushed "Save" button, but changes weren't applied.
We tried several times - the same result.We used Github-login and password.
May be ..the problem is that all dependences weren't established? And how to learn the list of all dependences (the version of packages)?
Thanks a lot
Best regards,
Alex