diff --git a/code/components/jomjol_fileserver_ota/server_file.cpp b/code/components/jomjol_fileserver_ota/server_file.cpp
index ff2240c6..974df682 100644
--- a/code/components/jomjol_fileserver_ota/server_file.cpp
+++ b/code/components/jomjol_fileserver_ota/server_file.cpp
@@ -639,10 +639,8 @@ static esp_err_t upload_post_handler(httpd_req_t *req)
     int start_fn = strlen(((struct file_server_data *)req->user_ctx)->base_path);
     ESP_LOGD(TAG, "Directory: %s, start_fn: %d, found: %d", directory.c_str(), start_fn, found);
 	directory = directory.substr(start_fn, found - start_fn + 1);
-    ESP_LOGD(TAG, "Directory danach 1: %s", directory.c_str());
-
     directory = "/fileserver" + directory;
-    ESP_LOGD(TAG, "Directory danach 2: %s", directory.c_str());
+//    ESP_LOGD(TAG, "Directory danach 2: %s", directory.c_str());
 
     /* Redirect onto root to see the updated file list */
     httpd_resp_set_status(req, "303 See Other");
@@ -761,8 +759,6 @@ static esp_err_t delete_post_handler(httpd_req_t *req)
         int start_fn = strlen(((struct file_server_data *)req->user_ctx)->base_path);
         ESP_LOGD(TAG, "Directory: %s, start_fn: %d, found: %d", directory.c_str(), start_fn, found);
         directory = directory.substr(start_fn, found - start_fn + 1);
-        ESP_LOGD(TAG, "Directory danach 3: %s", directory.c_str());
-
         directory = "/fileserver" + directory;
         ESP_LOGD(TAG, "Directory danach 4: %s", directory.c_str());
     }
@@ -820,9 +816,9 @@ std::string unzip_new(std::string _in_zip_file, std::string _target_zip, std::st
 
     ESP_LOGD(TAG, "miniz.c version: %s", MZ_VERSION);
     ESP_LOGD(TAG, "Zipfile: %s", _in_zip_file.c_str());
-    ESP_LOGD(TAG, "Target Dir ZIP: %s", _target_zip.c_str());
-    ESP_LOGD(TAG, "Target Dir BIN: %s", _target_bin.c_str());
-    ESP_LOGD(TAG, "Target Dir main: %s", _main.c_str());
+//    ESP_LOGD(TAG, "Target Dir ZIP: %s", _target_zip.c_str());
+//    ESP_LOGD(TAG, "Target Dir BIN: %s", _target_bin.c_str());
+//    ESP_LOGD(TAG, "Target Dir main: %s", _main.c_str());
 
     // Now try to open the archive.
     memset(&zip_archive, 0, sizeof(zip_archive));
@@ -892,17 +888,32 @@ std::string unzip_new(std::string _in_zip_file, std::string _target_zip, std::st
                 // extrahieren in zwischendatei
                 DeleteFile(filename_zw);
                 FILE* fpTargetFile = OpenFileAndWait(filename_zw.c_str(), "wb");
-                fwrite(p, 1, (uint)uncomp_size, fpTargetFile);
+                uint writtenbytes = fwrite(p, 1, (uint)uncomp_size, fpTargetFile);
                 fclose(fpTargetFile);
+                
+                bool isokay = true;
 
-                DeleteFile(zw);
-                RenameFile(filename_zw, zw);
-                DeleteFile(filename_zw);
+                if (writtenbytes == (uint)uncomp_size)
+                {
+                    isokay = true;
+                }
+                else
+                {
+                    isokay = false;
+                    ESP_LOGE(TAG, "ERROR in writting extracted file (function fwrite) extracted file \"%s\", size %u", archive_filename, (uint)uncomp_size);
+                }
 
-                ESP_LOGD(TAG, "Successfully extracted file \"%s\", size %u", archive_filename, (uint)uncomp_size);
-                //            ESP_LOGD(TAG, "File data: \"%s\"", (const char*)p);
 
-                // We're done.
+                isokay = isokay && RenameFile(filename_zw, zw);
+                isokay = isokay && DeleteFile(filename_zw);
+
+                if (isokay)
+                    ESP_LOGD(TAG, "Successfully extracted file \"%s\", size %u", archive_filename, (uint)uncomp_size);
+                else
+                {
+                    ESP_LOGE(TAG, "ERROR in extracting file \"%s\", size %u", archive_filename, (uint)uncomp_size);
+                    ret = "ERROR";
+                }
                 mz_free(p);
             }
         }
diff --git a/code/components/jomjol_helper/Helper.cpp b/code/components/jomjol_helper/Helper.cpp
index 44ad50b0..03a14757 100644
--- a/code/components/jomjol_helper/Helper.cpp
+++ b/code/components/jomjol_helper/Helper.cpp
@@ -165,32 +165,20 @@ void memCopyGen(uint8_t* _source, uint8_t* _target, int _size)
 
 
 
-FILE* OpenFileAndWait(const char* nm, const char* _mode, int _waitsec)
+FILE* OpenFileAndWait(const char* nm, const char* _mode, int _waitsec, bool silent)
 {
 	FILE *pfile;
 
 	ESP_LOGD(TAG, "open file %s in mode %s", nm, _mode);
 
 	if ((pfile = fopen(nm, _mode)) != NULL) {
-		ESP_LOGD(TAG, "File %s successfully opened", nm);
+		if (!silent) ESP_LOGD(TAG, "File %s successfully opened", nm);
 	}
 	else {
-		ESP_LOGD(TAG, "Error: file %s does not exist!", nm);
+		if (!silent) ESP_LOGD(TAG, "Error: file %s does not exist!", nm);
 		return NULL;
 	}
 
-/*
-	if (pfile == NULL)
-	{
-		TickType_t xDelay;
-		xDelay = _waitsec * 1000 / portTICK_PERIOD_MS;
-		std::string zw = "File is locked: " + std::string(nm) + " - wait for " + std::to_string(_waitsec) + " seconds";
-	    LogFile.WriteToFile(ESP_LOG_INFO, zw);
-		vTaskDelay( xDelay );
-		pfile = fopen(nm, _mode);
-	}
-*/
-
 	return pfile;
 }
 
@@ -231,11 +219,15 @@ void FindReplace(std::string& line, std::string& oldString, std::string& newStri
     }
 }
 
-void MakeDir(std::string _what)
+bool MakeDir(std::string _what)
 {
-int mk_ret = mkdir(_what.c_str(), 0775);
-if (mk_ret)
-	ESP_LOGD(TAG, "error with mkdir %s ret %d", _what.c_str(), mk_ret);
+	int mk_ret = mkdir(_what.c_str(), 0775);
+	if (mk_ret)
+	{
+		ESP_LOGD(TAG, "error with mkdir %s ret %d", _what.c_str(), mk_ret);
+		return false;
+	}
+	return true;
 }
 
 
@@ -302,7 +294,7 @@ size_t findDelimiterPos(string input, string delimiter)
 }
 
 
-void RenameFile(string from, string to)
+bool RenameFile(string from, string to)
 {
 //	ESP_LOGI(logTag, "Deleting file : %s", fn.c_str());
 	/* Delete file */
@@ -310,15 +302,16 @@ void RenameFile(string from, string to)
 	if (!fpSourceFile)	// Sourcefile existiert nicht sonst gibt es einen Fehler beim Kopierversuch!
 	{
 		ESP_LOGD(TAG, "DeleteFile: File %s existiert nicht!", from.c_str());
-		return;
+		return false;
 	}
 	fclose(fpSourceFile);
 
 	rename(from.c_str(), to.c_str());
+	return true;
 }
 
 
-void DeleteFile(string fn)
+bool DeleteFile(string fn)
 {
 //	ESP_LOGI(logTag, "Deleting file : %s", fn.c_str());
 	/* Delete file */
@@ -326,15 +319,16 @@ void DeleteFile(string fn)
 	if (!fpSourceFile)	// Sourcefile existiert nicht sonst gibt es einen Fehler beim Kopierversuch!
 	{
 		ESP_LOGD(TAG, "DeleteFile: File %s existiert nicht!", fn.c_str());
-		return;
+		return false;
 	}
 	fclose(fpSourceFile);
 
-	unlink(fn.c_str());    
+	unlink(fn.c_str());
+	return true;    
 }
 
 
-void CopyFile(string input, string output)
+bool CopyFile(string input, string output)
 {
 	input = FormatFileName(input);
 	output = FormatFileName(output);
@@ -342,7 +336,7 @@ void CopyFile(string input, string output)
 	if (toUpper(input).compare("/SDCARD/WLAN.INI") == 0)
 	{
 		ESP_LOGD(TAG, "wlan.ini kann nicht kopiert werden!");
-		return;
+		return false;
 	}
 
 	char cTemp;
@@ -350,7 +344,7 @@ void CopyFile(string input, string output)
 	if (!fpSourceFile)	// Sourcefile existiert nicht sonst gibt es einen Fehler beim Kopierversuch!
 	{
 		ESP_LOGD(TAG, "File %s existiert nicht!", input.c_str());
-		return;
+		return false;
 	}
 
 	FILE* fpTargetFile = OpenFileAndWait(output.c_str(), "wb");
@@ -368,6 +362,7 @@ void CopyFile(string input, string output)
 	fclose(fpSourceFile);
 	fclose(fpTargetFile);
 	ESP_LOGD(TAG, "File copied: %s to %s", input.c_str(), output.c_str());
+	return true;
 }
 
 string getFileFullFileName(string filename)
diff --git a/code/components/jomjol_helper/Helper.h b/code/components/jomjol_helper/Helper.h
index aeb5054f..32d7d448 100644
--- a/code/components/jomjol_helper/Helper.h
+++ b/code/components/jomjol_helper/Helper.h
@@ -9,16 +9,16 @@ using namespace std;
 std::string FormatFileName(std::string input);
 void FindReplace(std::string& line, std::string& oldString, std::string& newString);
 
-void CopyFile(string input, string output);
-void DeleteFile(string fn);
-void RenameFile(string from, string to);
-void MakeDir(std::string _what);
+bool CopyFile(string input, string output);
+bool DeleteFile(string fn);
+bool RenameFile(string from, string to);
+bool MakeDir(std::string _what);
 
 
 string RundeOutput(double _in, int _anzNachkomma);
 
 
-FILE* OpenFileAndWait(const char* nm, const char* _mode, int _waitsec = 1);
+FILE* OpenFileAndWait(const char* nm, const char* _mode, int _waitsec = 1, bool silent = true);
 
 size_t findDelimiterPos(string input, string delimiter);
 //string trim(string istring);
diff --git a/code/main/main.cpp b/code/main/main.cpp
index 5f1da209..adff6cb0 100644
--- a/code/main/main.cpp
+++ b/code/main/main.cpp
@@ -195,7 +195,7 @@ extern "C" void app_main(void)
         ESP_LOGD(TAGMAIN, "No SSID and PASSWORD set!!!");
 
     if (hostname != NULL)
-        ESP_LOGD(TAGMAIN, "Hostename: %s", hostname);
+        ESP_LOGD(TAGMAIN, "Hostname: %s", hostname);
     else
         ESP_LOGD(TAGMAIN, "Hostname not set");
 
diff --git a/code/main/server_main.cpp b/code/main/server_main.cpp
index 719bdd7a..8f1672d2 100644
--- a/code/main/server_main.cpp
+++ b/code/main/server_main.cpp
@@ -450,7 +450,7 @@ httpd_handle_t start_webserver(void)
     config.server_port        = 80;
     config.ctrl_port          = 32768;
     config.max_open_sockets   = 5;          //20210921 --> vorher 7   
-    config.max_uri_handlers   = 30;         // vorher 24             
+    config.max_uri_handlers   = 35;         // vorher 24, 20220511: 35             
     config.max_resp_headers   = 8;                        
     config.backlog_conn       = 5;                        
     config.lru_purge_enable   = true;       // dadurch werden alte Verbindungen gekappt, falls neue benögt werden.