I. For QT-Wallet

Step 1. Step 1. Backup your wallet (wallet.dat) to a usb drive. 

Step 2. Stop wallet 

Step 3. Go to data folder (https://bitcoinconfidential.freshdesk.com/support/solutions/articles/44001537260-where-is-the-data-folder-for-my-desktop-bitcoinconfidential-wallet-stored- )

Step 4. Delete  this files and folders 

Step 5. Start wallet and wait 

5.1 In case your wallet didn't sync, your wallet.dat may be corrupted. Please replace it with your wallet.dat backup file and restart wallet 

II. For Wallet on VPS

Step1. Stop wallet 

./bitcoinc-cli stop & sleep 5

Step 2. Go to data folder 

cd 

cd .bitcoinc

rm -rf blocks chainstate indexes smsgdb

rm -f  banlist.dat fee_estimates.dat peers.dat mempool.dat

Step 3. Start wallet 

cd 

./bitcoincd && sleep 5 && ./bitcoinc-cli walletsettings stakingstatus true