Getting ""before all" hook: prepare suite" Error While running test script on the Rinkeby

[Seyed Ali YaghoubNejad]

Hi there
Recently I tried to fork this project and to understand its mechanism, I've tried to test it on the Rinkeby test network.
Every single time I try to run the test script, I face this error:

Using network 'rinkeby'.


Compiling your contracts...
===========================
> Everything is up to date, there is nothing to compile.



  Contract: ZSC
    1) "before all" hook: prepare suite


  0 passing (2m)
  1 failing

  1) Contract: ZSC
       "before all" hook: prepare suite:
     Error: Timeout of 120000ms exceeded. For async tests and hooks, ensure "done()" is called; if returning a Promise, ensure it resolves.

I wonder if there is anyone who knows the reason for this error?
And whether this project is completed, or still under development?