diff --git a/libraries/chain/account_evaluator.cpp b/libraries/chain/account_evaluator.cpp
index b9b27716..51205ae5 100644
--- a/libraries/chain/account_evaluator.cpp
+++ b/libraries/chain/account_evaluator.cpp
@@ -68,6 +68,7 @@ void verify_account_votes( const database& db, const account_options& options )
               "Voted for more witnesses than currently allowed (${c})", ("c", chain_params.maximum_witness_count) );
    FC_ASSERT( options.num_committee <= chain_params.maximum_committee_count,
               "Voted for more committee members than currently allowed (${c})", ("c", chain_params.maximum_committee_count) );
+   FC_ASSERT( db.find_object(options.voting_account), "Invalid proxy account specified." );
 
    uint32_t max_vote_id = gpo.next_available_vote_id;
    bool has_worker_votes = false;
@@ -108,7 +109,6 @@ void_result account_create_evaluator::do_evaluate( const account_create_operatio
       FC_ASSERT( !op.extensions.value.buyback_options.valid() );
    }
 
-   FC_ASSERT( d.find_object(op.options.voting_account), "Invalid proxy account specified." );
    FC_ASSERT( fee_paying_account->is_lifetime_member(), "Only Lifetime members may register an account." );
    FC_ASSERT( op.referrer(d).is_member(d.head_block_time()), "The referrer must be either a lifetime or annual subscriber." );
 
diff --git a/libraries/chain/db_maint.cpp b/libraries/chain/db_maint.cpp
index b701259c..a41bc7df 100644
--- a/libraries/chain/db_maint.cpp
+++ b/libraries/chain/db_maint.cpp
@@ -1244,10 +1244,15 @@ void database::perform_chain_maintenance(const signed_block& next_block, const g
             // There may be a difference between the account whose stake is voting and the one specifying opinions.
             // Usually they're the same, but if the stake account has specified a voting_account, that account is the one
             // specifying the opinions.
-            const account_object& opinion_account =
+            const account_object* opinion_account_ptr =
                   (stake_account.options.voting_account ==
-                   GRAPHENE_PROXY_TO_SELF_ACCOUNT)? stake_account
-                                     : d.get(stake_account.options.voting_account);
+                   GRAPHENE_PROXY_TO_SELF_ACCOUNT)? &stake_account
+                                     : d.find(stake_account.options.voting_account);
+
+            if( !opinion_account_ptr ) // skip non-exist account
+               return;
+
+            const account_object& opinion_account = *opinion_account_ptr;
 
             const auto& stats = stake_account.statistics(d);
             uint64_t voting_stake = stats.total_core_in_orders.value