Unable to get updates from the updates tab

[Husky363]

it has been going on for weeks where i am unable to get updates for the apps i have installed with the error message " Device is not ready. Try to reboot your device and/or keep it active and unlocked" even though i have restarted my phone but no use. i have re-installed the the appdb app but still the same issue occurs. keep in mind i have been updating my apps normally through it until it stopped.