I am not able to push my watchfaces via Galaxy Watch Studio

Guys me getting this error while me trying to push watchface via Galaxy Watch Stuido all was fine till yesterday. anyone knows how to fix it ?

The error certificate in signature expired (actually means it timed out). Usually it is because you did not accept the RSA Encryption key or had an update or debugging is not on.

Did you have an update on your watch or pair it to a different phone recently if so you need to create a new Distributor Certificate
But it could be the RSA Encryption Key was not accepted.
The fix in any case
go to the phone and be sure that debugging is enabled.
Create a new distributor certificate
If it still won’t sideload then it is the RSA Encryption Key was not accepted.

In the C:\users\YOUR_USERNAME\ folder is a hidden folder .tizen
in that folder rename the sdb and sdb.pub to something else. They will be re-created when you start to debug.

Restart watch by holding down the power key until it says restarting about 15 seconds
restart computer to clear any caches.

next time when you go to connect keep the watch active and watch for the RSA Encryption Key and accept it.

Hope this helps,

Samsung Developer Relations