Hello dev, I am mining in test net to help the project and also to get used to the new way of mining, everything was ok until yesterday 9 pm. Today I started to sync and the daemon stop sync at 5180 block and I have restart it many times and also the PC, can you tell me please how do I fix it.

I also want to ask some extra questions to dev.

1.- When dero atlantis is lunch (main net) we are only going to be able to mine this way. If the answer is yes I think is awesome, for this was the initial idea of Sathosi on bitcoin

2.- Will or will not be possible to mine with GPU. I hope the answer is not

3.- When is main net going to be launch

Thanks