Fix sidechain address generation

libraries/plugins/peerplays_sidechain/sidechain_net_handler_bitcoin.cpp

@@ -1360,6 +1360,7 @@ void sidechain_net_handler_bitcoin::process_sidechain_addresses() {
    std::for_each(sidechain_addresses_by_sidechain_range.first, sidechain_addresses_by_sidechain_range.second,
                  [&](const sidechain_address_object &sao) {
                     bool retval = true;
+                    try {
                        if (sao.expires == time_point_sec::maximum()) {
                           auto usr_pubkey = fc::ecc::public_key(create_public_key_data(parse_hex(sao.deposit_public_key)));
 
@@ -1392,6 +1393,9 @@ void sidechain_net_handler_bitcoin::process_sidechain_addresses() {
                              }
                           }
                        }
+                    } catch (fc::exception &e) {
+                       retval = false;
+                    }
                     return retval;
                  });
 }