Make sure youre using the latest wallet version, make sure you leave enough in the wallet for the fee, and if you still get errors then just wait a minute and try again. I think the handful of proxy nodes that the wallets connect to are overloaded. Sometimes you just have to retry a few times. This will get better with more nodes soon probably.

Yes that is the correct max supply. The circulating supply jumped on CMC because they had it wrong and they just updated it. They werent keeping up with the mining emission before.

disable antivirus/firewall I guess. No one else has reported issues like that, so you might have some other stuff going on with your system.

They do. Try closing the app and reopening it. It will say "Waiting for update.." and then change to "Updated!" after a few seconds to a minute. If you have connection issues then try the CLI wallet until we have more proxy nodes to connect to.

Ask Verifone.

Pundi X:
Centralized.
Requires merchants to buy their special POS terminals.
Requires merchants to buy PXS/NPXS tokens for fees.
White paper does not mention what the fees are for merchants (which means that they are most likely as high or higher than Visa, Mastercard, etc fees).
Requires users/customers to pay crypto transaction fees as well.
Collects "credit rating data" on all users to use (sell?) as the Pundi X company wishes.

Merchants have no incentive to adopt this. It will likely cost them more than just accepting traditional credit card purchases. They will also need to have a regular POS terminal and a Pundi X POS terminal in their store. This system will only appeal to merchants who are crypto enthusiasts or who are willing to spend the extra money to attract crypto enthusiasts to their stores.

GRAFT:
Decentralized.
Open-source.
Integrates with existing POS terminals.
Merchants dont need to buy anything.
The merchant pays a minuscule fee in comparison to Visa and other options, and the fee is in the whitepaper for all to see.
Users/customers do not pay a transaction fee.
Private blockchain and no data collection.

Merchants have an incentive to use GRAFT. They will save a lot of money on fees and they will also attract users who prefer to use crypto. Merchants wont need to buy an extra terminal. Their existing terminal can still be used for regular credit/debit cards and crypto.

Adoption Potential:

Pundi X plans to have 100,000 of their POS terminals deployed in the next 3 years.

GRAFT software is already certified by Verifone for use in their terminals. Verifone has over 26 million terminals across 150 countries. When GRAFT POS capability is ready in the next month or two (via supernodes) then GRAFT will already be deployable in millions of terminals worldwide. Thats just the start. Ingenico terminals are up next for certification. Ingenico has 30 million terminals across 170 countries.

You can earn GRFT by wearing graft gear at conferences/events or by creating and posting videos about GRAFT.
Go here for details: https://www.graft.network/graft-affiliate-program/

You can also download the Cryptofind app and get GRFT for onboarding merchants: https://www.graft.network/cryptofind/

No this is not possible due to the private nature of the GRAFT blockchain. However, you can use a command in the CLI wallet to view the transactions associated with your wallet address. Just use the mnemonic seed words from your mobile/desktop wallet to import into your CLI wallet.
Get the CLI wallet here: https://www.dropbox.com/sh/3f08lgk3zn6gm0w/AACP2RT2uDqdeMlPJxbhGNL1a/Wallets?dl=0 or follow the instructions on the official github here to compile it yourself: https://github.com/graft-project/GraftNetwork

You can buy GRFT on stocks.exchange or Tradeogre.com. Most of the volume is at Tradeogre.

A note about wallets: Mobile and desktop wallets connect to remote nodes/servers. Some users are experiencing connection errors or internal server errors when trying to send GRFT from these wallets. The only "fix" for this is to try again until it works. The CLI wallets run a local node on your PC, so you will NOT experience any connection or server errors. I recommend the CLI wallet so you don't have to rely on remote nodes/servers.
GRAFT CLI Wallets: https://www.dropbox.com/sh/3f08lgk3zn6gm0w/AACP2RT2uDqdeMlPJxbhGNL1a/Wallets?dl=0

Many people with large mining operations, and people who use nicehash for extended periods of time, setup their own private pools so they don't have to share block rewards with other miners on public pools. That doesn't necessarily mean that it is one or two miners. There are likely many large miners who have been drawn to this project recently since the network has been stable. It is often the most profitable cryptonight coin to mine and it also has the most potential for growth with the market cap being bottomed out for a while. The high "hidden" hashrate didnt appear all at once, so I doubt that it is just a "handfull of miners". Much of the network hashrate was from private pools even when the network was at 8 MH/s. It has grown faster since the news of Verifone POS terminal certification, which also seems to have been the catalyst for the price increase. It didn't take very much BTC to buy up half of the orderbook on Tradeogre and drive the price up. That is just a result of low liquidity.
Im not really sure what your suspicion is, but the higher network hashrate is good for the network and it has no correlation at all with a price increase.

Sorry, no discord group.
Telegram: https://t.me/GraftNet
Reddit: https://www.reddit.com/r/Graft

Here is the white paper: https://www.graft.network/wp-content/uploads/2018/02/Graft-White-Paper-2.2-draft.pdf
Info about supernodes starts on page 14.

Did your wallet have any GRFT in it? If not, just create a new wallet and save the mnemonic seed words. You should always save the mnemonic phrase. That is the only way that I know of to restore a wallet at the moment, but you could email help@graft.network to make sure since I am not the most knowledgeable person in this regard.

I believe that the GRAFT wallet will eventually either support multiple currencies or link to other currencies wallets to automatically exchange incoming payments into whichever currency you want it converted to. For now, the GRAFT wallet only stores and sends GRFT.

The link is at the very bottom of the page on graft.network.
Windows wallet —> https[Suspicious link removed]

The project is still alive. There is no reason to think otherwise.

Iv'e never run a masternode so im not entirely sure. I imagine its just a matter of running a VPS (locally or remotely via a hosting service) and entering a bunch of command lines to install and configure the software and any necessary dependencies.

ETA for supernodes is in June.