-28 usually means your client (Bitcoin Core) is still starting/warming-up, but looks like the message says otherwise. Your first command throw error because you forget to add - though.
It would be great if you could share your debug.log file, so we'd have easier time identifying the problem
It would be great if you could share your debug.log file, so we'd have easier time identifying the problem
When i run cat debug.log i recived this.
2019-03-03T17:46:42Z Bitcoin Core version v0.17.1 (release build)
2019-03-03T17:46:42Z InitParameterInteraction: parameter interaction: -whitelistforcerelay=1 -> setting -whitelistrelay=1
2019-03-03T17:46:42Z Assuming ancestors of block 0000000000000000002e63058c023a9a1de233554f28c7b21380b6c9003f36a8 have valid signatures.
2019-03-03T17:46:42Z Setting nMinimumChainWork=0000000000000000000000000000000000000000028822fef1c230963535a90d
2019-03-03T17:46:42Z Prune configured to target 600MiB on disk for block and undo files.
2019-03-03T17:46:42Z Using the 'sse4(1way),sse41(4way),avx2(8way)' SHA256 implementation
2019-03-03T17:46:42Z Using RdRand as an additional entropy source
2019-03-03T17:46:42Z Default data directory /home/ubuntu/.bitcoin
2019-03-03T17:46:42Z Using data directory /home/ubuntu/.bitcoin
2019-03-03T17:46:42Z Using config file /home/ubuntu/.bitcoin/bitcoin.conf
2019-03-03T17:46:42Z Using at most 12 automatic connections (1024 file descriptors available)
2019-03-03T17:46:42Z Using 16 MiB out of 32/2 requested for signature cache, able to store 524288 elements
2019-03-03T17:46:42Z Using 16 MiB out of 32/2 requested for script execution cache, able to store 524288 elements
2019-03-03T17:46:42Z Using 0 threads for script verification
2019-03-03T17:46:42Z scheduler thread start
2019-03-03T17:46:42Z HTTP: creating work queue of depth 16
2019-03-03T17:46:42Z Config options rpcuser and rpcpassword will soon be deprecated. Locally-run instances may remove rpcuser to use cookie-based auth, or may be replaced with rpcauth. Please see share/rpcauth for rpcauth auth generation.
2019-03-03T17:46:42Z HTTP: starting 4 worker threads
2019-03-03T17:46:42Z Using wallet directory /home/ubuntu/.bitcoin
2019-03-03T17:46:42Z init message: Verifying wallet(s)...
2019-03-03T17:46:43Z Using BerkeleyDB version Berkeley DB 4.8.30: (April 9, 2010)
2019-03-03T17:46:43Z Using wallet wallet.dat
2019-03-03T17:46:43Z BerkeleyEnvironment::Open: LogDir=/home/ubuntu/.bitcoin/database ErrorFile=/home/ubuntu/.bitcoin/db.log
2019-03-03T17:46:43Z Cache configuration:
2019-03-03T17:46:43Z * Using 2.0MiB for block index database
2019-03-03T17:46:43Z * Using 8.0MiB for chain state database
2019-03-03T17:46:43Z * Using 440.0MiB for in-memory UTXO set (plus up to 286.1MiB of unused mempool space)
2019-03-03T17:46:43Z init message: Loading block index...
2019-03-03T17:46:43Z Opening LevelDB in /home/ubuntu/.bitcoin/blocks/index
2019-03-03T17:46:43Z Opened LevelDB successfully
2019-03-03T17:46:43Z Using obfuscation key for /home/ubuntu/.bitcoin/blocks/index: 0000000000000000
2019-03-03T17:46:46Z LoadBlockIndexDB: last block file = 302
2019-03-03T17:46:46Z LoadBlockIndexDB: last block file info: CBlockFileInfo(blocks=22, size=15558622, heights=365574...365643, time=2015-07-16...2015-07-17)
2019-03-03T17:46:46Z Checking all blk files are present...
2019-03-03T17:46:46Z LoadBlockIndexDB(): Block files have previously been pruned
2019-03-03T17:46:46Z Wiping LevelDB in /home/ubuntu/.bitcoin/chainstate
2019-03-03T17:46:46Z Opening LevelDB in /home/ubuntu/.bitcoin/chainstate
2019-03-03T17:46:46Z Opened LevelDB successfully
2019-03-03T17:46:46Z Wrote new obfuscate key for /home/ubuntu/.bitcoin/chainstate: 56aab2d849f3053f
2019-03-03T17:46:46Z Using obfuscation key for /home/ubuntu/.bitcoin/chainstate: 56aab2d849f3053f
2019-03-03T17:46:46Z init message: Rewinding blocks...
2019-03-03T17:46:48Z block index 5207ms
2019-03-03T17:46:48Z init message: Loading wallet...
2019-03-03T17:46:48Z [default wallet] nFileVersion = 170100
2019-03-03T17:46:48Z [default wallet] Keys: 2001 plaintext, 0 encrypted, 2001 w/ metadata, 2001 total. Unknown wallet records: 1
2019-03-03T17:46:48Z [default wallet] Wallet completed loading in 39ms
2019-03-03T17:46:48Z [default wallet] setKeyPool.size() = 2000
2019-03-03T17:46:48Z [default wallet] mapWallet.size() = 0
2019-03-03T17:46:48Z [default wallet] mapAddressBook.size() = 0
2019-03-03T17:46:48Z Unsetting NODE_NETWORK on prune mode
2019-03-03T17:46:48Z init message: Pruning blockstore...
2019-03-03T17:46:48Z Imported mempool transactions from disk: 0 succeeded, 0 failed, 0 expired, 0 already there
2019-03-03T20:48:24Z Potential stale tip detected, will try using extra outbound peer (last tip update: 10856 seconds ago)
2019-03-03T20:58:54Z Potential stale tip detected, will try using extra outbound peer (last tip update: 11486 seconds ago)
2019-03-03T21:09:24Z Potential stale tip detected, will try using extra outbound peer (last tip update: 12116 seconds ago)
2019-03-03T21:19:54Z Potential stale tip detected, will try using extra outbound peer (last tip update: 12746 seconds ago)
2019-03-03T21:30:24Z Potential stale tip detected, will try using extra outbound peer (last tip update: 13376 seconds ago)
2019-03-03T21:40:54Z Potential stale tip detected, will try using extra outbound peer (last tip update: 14006 seconds ago)
2019-03-03T21:51:24Z Potential stale tip detected, will try using extra outbound peer (last tip update: 14636 seconds ago)
2019-03-03T22:01:54Z Potential stale tip detected, will try using extra outbound peer (last tip update: 15266 seconds ago)
2019-03-03T22:12:24Z Potential stale tip detected, will try using extra outbound peer (last tip update: 15896 seconds ago)
