thank you for replay.

i found this error when i want to sync the blockchain:

Code:

2017-May-30 20:08:08.443502 [P2P8]ERROR /home/2017/boolberry/src/currency_core/blockchain_storage.cpp:2046[bool currency::blockchain_storage::check_tx_input(const currency::txin_to_key&, const crypto::hash&, const std::vector&, uint64_t*)]Failed to validate key image
2017-May-30 20:08:08.443541 [P2P8]Failed to check ring signature for tx <9f395234de50d836337dacef0133031f34d7ccf77ff261fdd710494675383e69>
2017-May-30 20:08:08.443559 [P2P8]Transaction verification impossible: <9f395234de50d836337dacef0133031f34d7ccf77ff261fdd710494675383e69>
2017-May-30 20:08:08.498263 [P2P8]ERROR /home/2017/boolberry/src/currency_core/blockchain_storage.cpp:2046[bool currency::blockchain_storage::check_tx_input(const currency::txin_to_key&, const crypto::hash&, const std::vector&, uint64_t*)]Failed to validate key image
2017-May-30 20:08:08.498293 [P2P8]Failed to check ring signature for tx <9f395234de50d836337dacef0133031f34d7ccf77ff261fdd710494675383e69>
2017-May-30 20:08:08.498307 [P2P8]Block with id: have at least one transaction (id: <9f395234de50d836337dacef0133031f34d7ccf77ff261fdd710494675383e69>) with wrong inputs.
2017-May-30 20:08:08.498443 [P2P8]ERROR /home/2017/boolberry/src/currency_core/blockchain_storage.cpp:2046[bool currency::blockchain_storage::check_tx_input(const currency::txin_to_key&, const crypto::hash&, const std::vector&, uint64_t*)]Failed to validate key image
2017-May-30 20:08:08.498457 [P2P8]Failed to check ring signature for tx <9f395234de50d836337dacef0133031f34d7ccf77ff261fdd710494675383e69>
2017-May-30 20:08:08.498483 [P2P8]BLOCK ADDED AS INVALID:
, prev_id=<435692792d7790e86e455b2211814fab0a4b480222cd216f0bc8b6164561e8c9>, m_invalid_blocks count=1
2017-May-30 20:08:08.498508 [P2P8]Block with id added as invalid becouse of wrong inputs in transactions
2017-May-30 20:08:08.498526 [P2P8][213.239.213.235:10101 OUT]Block verification failed, dropping connection
2017-May-30 20:08:09.428587 [P2P6]Connecting to 213.239.213.235:10101(white=1, last_seen: d0.h0.m0.s36)...
2017-May-30 20:08:09.968004 [P2P5][213.239.213.235:10101 OUT]Sync data returned unknown top block: 757131 -> 791910 [34779 blocks (48 days) behind]
SYNCHRONIZATION started
2017-May-30 20:08:09.968144 [P2P5][213.239.213.235:10101 OUT] COMMAND_HANDSHAKE INVOKED OK
2017-May-30 20:08:19.970070 [P2P3]Connecting to 122.54.174.141:10101(white=1, last_seen: d0.h1.m1.s23)...
2017-May-30 20:08:22.409997 [P2P6][122.54.174.141:10101 OUT]Sync data returned unknown top block: 757131 -> 526966 [230165 blocks (-319 days) ahead]
SYNCHRONIZATION started
2017-May-30 20:08:22.410143 [P2P6][122.54.174.141:10101 OUT] COMMAND_HANDSHAKE INVOKED OK
2017-May-30 20:08:22.410322 [P2P3]Connecting to 51.255.193.7:10101(white=1, last_seen: d0.h0.m54.s42)...
2017-May-30 20:08:23.088519 [P2P1][51.255.193.7:10101 OUT]Sync data returned unknown top block: 757131 -> 791910 [34779 blocks (48 days) behind]
SYNCHRONIZATION started
2017-May-30 20:08:23.088666 [P2P1][51.255.193.7:10101 OUT] COMMAND_HANDSHAKE INVOKED OK
2017-May-30 20:08:23.088851 [P2P3]Connecting to 195.154.161.46:10101(white=1, last_seen: d0.h0.m54.s21)...
2017-May-30 20:08:24.535188 [P2P8][195.154.161.46:10101 OUT]Sync data returned unknown top block: 757131 -> 791910 [34779 blocks (48 days) behind]
SYNCHRONIZATION started
2017-May-30 20:08:24.535328 [P2P8][195.154.161.46:10101 OUT] COMMAND_HANDSHAKE INVOKED OK
2017-May-30 20:08:24.768700 [P2P6]Block recognized as orphaned and rejected, id =
2017-May-30 20:08:24.768729 [P2P6][66.228.37.171:10101 OUT]Block received at sync phase was marked as orphaned, dropping connection
2017-May-30 20:08:25.632576 [P2P6]Block recognized as orphaned and rejected, id =
2017-May-30 20:08:25.632621 [P2P6][213.239.213.235:10101 OUT]Block received at sync phase was marked as orphaned, dropping connection

try to sync many times, allways stick on the same place.
What i can do now for sync the blockhain?
Without syncing no transaction is possible, because simplewallet say the demon are busy.