I find out that that all project wiht the name Mystphysx have deaht project all his wallets created by this name dont work in the play store .
include the nka wallet after a jear of creation a coin... its ends in nothing.
See for your selfs all Dev are gone.
We tried many attempts to contact him to no avail sadly. That was a paid service and he ran off with our funds and did not fulfill his obligations.. we do have plans to create mobile wallets very soon in the future..