diff --git a/urbackupserver/server_get.cpp b/urbackupserver/server_get.cpp
index 18feae96..9438f717 100644
--- a/urbackupserver/server_get.cpp
+++ b/urbackupserver/server_get.cpp
@@ -122,10 +122,10 @@ BackupServerGet::BackupServerGet(IPipe *pPipe, sockaddr_in pAddr, const std::wst
 	SSettings tmp = {};
 	curr_intervals = tmp;
 
-	last_image_backup_try=0;
+	last_image_backup_try=0;
 	count_image_backup_try=0;
 
-	last_file_backup_try=0;
+	last_file_backup_try=0;
 	count_file_backup_try=0;
 
 	hash_existing_mutex = Server->createMutex();
@@ -2730,8 +2730,8 @@ bool BackupServerGet::doIncrBackup(bool with_hashes, bool intra_file_diffs, bool
 
 					if(copy_curr_file_entry_sparse)
 					{
-						std::string curr_path = curr_path + "/" + Server->ConvertToUTF8(cf.name);
-						int crc32 = static_cast<int>(adler32(0, curr_path.c_str(), static_cast<unsigned int>(curr_path.size())));
+						std::string curr_file_path = Server->ConvertToUTF8(curr_path + L"/" + cf.name);
+						int crc32 = static_cast<int>(adler32(0, curr_file_path.c_str(), static_cast<unsigned int>(curr_file_path.size())));
 						if(crc32 % copy_file_entries_sparse_modulo == incremental_num )
 						{
 							if(trust_client_hashes && !curr_sha2.empty())
@@ -2759,7 +2759,10 @@ bool BackupServerGet::doIncrBackup(bool with_hashes, bool intra_file_diffs, bool
 	}
 
 	server_download->queueStop(false);
-	server_hash_existing->queueStop(false);
+	if(server_hash_existing.get())
+	{
+		server_hash_existing->queueStop(false);
+	}
 
 
 	while(!Server->getThreadPool()->waitFor(server_download_ticket, 1000))
@@ -4776,13 +4779,13 @@ unsigned int BackupServerGet::exponentialBackoffTime( size_t count, unsigned int
 
 bool BackupServerGet::exponentialBackoff(size_t count, int64 lasttime, unsigned int sleeptime, unsigned div)
 {
-	if(count>0)
-	{
-		unsigned int passed_time=static_cast<unsigned int>(Server->getTimeSeconds()-lasttime);
-		unsigned int sleeptime_exp = exponentialBackoffTime(count, sleeptime, div);
-
-		return passed_time>=sleeptime_exp;
-	}
+	if(count>0)
+	{
+		unsigned int passed_time=static_cast<unsigned int>(Server->getTimeSeconds()-lasttime);
+		unsigned int sleeptime_exp = exponentialBackoffTime(count, sleeptime, div);
+
+		return passed_time>=sleeptime_exp;
+	}
 	return true;
 }
 
@@ -4800,14 +4803,14 @@ unsigned int BackupServerGet::exponentialBackoffTimeFile()
 
 
 
-bool BackupServerGet::exponentialBackoffImage()
-{
-	return exponentialBackoff(count_image_backup_try, last_image_backup_try, c_sleeptime_failed_imagebackup, c_exponential_backoff_div);
-}
-
-bool BackupServerGet::exponentialBackoffFile()
-{
-	return exponentialBackoff(count_file_backup_try, last_file_backup_try, c_sleeptime_failed_filebackup, c_exponential_backoff_div);
+bool BackupServerGet::exponentialBackoffImage()
+{
+	return exponentialBackoff(count_image_backup_try, last_image_backup_try, c_sleeptime_failed_imagebackup, c_exponential_backoff_div);
+}
+
+bool BackupServerGet::exponentialBackoffFile()
+{
+	return exponentialBackoff(count_file_backup_try, last_file_backup_try, c_sleeptime_failed_filebackup, c_exponential_backoff_div);
 }
 
 bool BackupServerGet::authenticatePubKey()