diff --git a/00_Documentation/class_diagram.drawio b/00_Documentation/class_diagram.drawio
new file mode 100644
index 0000000000000000000000000000000000000000..b9abdda57be25090583bcca3759fb52df893c20c
--- /dev/null
+++ b/00_Documentation/class_diagram.drawio
@@ -0,0 +1,189 @@
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+  </diagram>
+</mxfile>
diff --git a/00_Documentation/class_diagram_V1.png b/00_Documentation/class_diagram_V1.png
new file mode 100644
index 0000000000000000000000000000000000000000..0a1c970a5c091d06bc243d17bd61d249961cab12
Binary files /dev/null and b/00_Documentation/class_diagram_V1.png differ
diff --git a/src/hpc_deployer/unicore/backend_api.py b/src/hpc_deployer/unicore/backend_api.py
index b2cd4f24e90ca55e3d99d0832bf1a196555efd0b..84485a0941428f41115511e91d1564c1e200f2e9 100644
--- a/src/hpc_deployer/unicore/backend_api.py
+++ b/src/hpc_deployer/unicore/backend_api.py
@@ -63,7 +63,7 @@ def start_job(unicore_config):
 
 @app.route('/start-orchestrator', methods=['POST'])
 def start_orchestrator_job():
-    start_orchestrator("localhost",config.orchestrator_portgrpc,config.base_path)
+    start_orchestrator("localhost",int(config.orchestrator_portgrpc),config.base_path)
 
 
 @app.route('/job-started', methods=['POST'])
diff --git a/src/hpc_deployer/unicore/unicore_job.py b/src/hpc_deployer/unicore/unicore_job.py
index c708d0c8f02a3be5b46f5ce0aa45fa5ad0965360..6be02cfb2dab61b6fd1e4bafefdd30a56cdbd491 100644
--- a/src/hpc_deployer/unicore/unicore_job.py
+++ b/src/hpc_deployer/unicore/unicore_job.py
@@ -67,8 +67,8 @@ class UnicoreJob:
         if response.status_code == 200:
             return response.content
             
-
-    def generate_pull_config(self,unicore_config):
+    # There is a bug regarding of pulling apptainers in parallel: https://github.com/apptainer/singularity/issues/3579. We use none parallel in our case
+    def generate_pull_config_parallel(self,unicore_config):
         email = unicore_config["notification_email"]
         project= unicore_config["project_name"]
         partition= unicore_config["partition"]
@@ -78,6 +78,7 @@ class UnicoreJob:
         for job_dic in container_list:
             docker_path = job_dic["image_url"]
             apptainer_name = job_dic["name"]
+            
             if num_gpu>0:
                 srun_string = "srun --exact --gres=gpu:1 -n1 --cpus-per-task=4 bash -c \"apptainer pull --dir ${{APPTAINER_FOLDER}} {apptainer_name}.sif docker://{docker_path}\" &".format(apptainer_name=apptainer_name, docker_path=docker_path)
             else:
@@ -97,8 +98,8 @@ class UnicoreJob:
             "mkdir -p ${WRITABLE_DIRECTORY}",
             "mkdir -p ${APPTAINER_FOLDER}",
 
-            "APPTAINER_CACHEDIR=$(mktemp -d -p $WRITABLE_DIRECTORY)",
-            "APPTAINER_TMPDIR=$(mktemp -d -p $WRITABLE_DIRECTORY)",
+            "export APPTAINER_CACHEDIR=$(mktemp -d -p $WRITABLE_DIRECTORY)",
+            "export APPTAINER_TMPDIR=$(mktemp -d -p $WRITABLE_DIRECTORY)",
             "echo ${APPTAINER_CACHEDIR}",
             "echo ${APPTAINER_TMPDIR}"
             ]
@@ -147,6 +148,85 @@ class UnicoreJob:
 
         return job_dic
     
+    def generate_pull_config(self,unicore_config):
+        email = unicore_config["notification_email"]
+        project= unicore_config["project_name"]
+        partition= unicore_config["partition"]
+        num_gpu= int(unicore_config["gpu_number"])
+        container_list= unicore_config["containers"]
+        srun_list=[]
+        for job_dic in container_list:
+            docker_path = job_dic["image_url"]
+            apptainer_name = job_dic["name"]
+            
+            if num_gpu>0:
+                srun_string = "apptainer pull --dir ${{APPTAINER_FOLDER}} {apptainer_name}.sif docker://{docker_path}".format(apptainer_name=apptainer_name, docker_path=docker_path)
+            else:
+                srun_string = "apptainer pull --dir ${{APPTAINER_FOLDER}} {apptainer_name}.sif docker://{docker_path}".format(apptainer_name=apptainer_name, docker_path=docker_path)
+            srun_list.append(srun_string)
+
+        scratch_folder_name = "${{SCRATCH_{}}}".format(project)
+        data_beginn = [
+            "#!/bin/sh",
+            "echo Job started",
+
+            "JOBDIR=job1",
+            
+            "export WRITABLE_DIRECTORY=/tmp/cacheapptainer/${JOBDIR}Cache",
+            "export APPTAINER_FOLDER={}/apptainerfolder".format(scratch_folder_name),
+
+            "mkdir -p ${WRITABLE_DIRECTORY}",
+            "mkdir -p ${APPTAINER_FOLDER}",
+
+            "export APPTAINER_CACHEDIR=$(mktemp -d -p $WRITABLE_DIRECTORY)",
+            "export APPTAINER_TMPDIR=$(mktemp -d -p $WRITABLE_DIRECTORY)",
+            "echo ${APPTAINER_CACHEDIR}",
+            "echo ${APPTAINER_TMPDIR}"
+            ]
+        
+        data_end = [
+            "rm -rf ${APPTAINER_CACHEDIR}",
+            "rm -rf ${APPTAINER_TMPDIR}"
+        ]
+
+        data_complete = data_beginn + srun_list + data_end
+
+        sbatch_setting = [
+            "#!/bin/bash",
+            f"#SBATCH --account={project}",
+            f"#SBATCH --partition={partition}",
+            "#SBATCH --nodes=1",
+            "#SBATCH --mem-per-cpu=4G   # memory per CPU core",
+            "#SBATCH --time=30",
+            "#SBATCH --output=stdout",
+            "#SBATCH --error=stderr"
+        ]
+
+        if num_gpu>0:
+            sbatch_setting.append("#SBATCH --gres=gpu:{}".format(num_gpu))
+
+        job_dic = {
+            "Name": "Pull job",
+            "User email": email,
+            "Job type": "RAW",
+            "BSS file": "bss.sh",
+            "Project": project,
+            "Executable": "/bin/sh",
+            "Arguments": ["pull.sh"],
+            "Imports": [
+                {
+                    "To":   "pull.sh",
+                    "Data": data_complete
+                },
+                {
+                    "To":   "bss.sh",
+                    "Data": sbatch_setting
+                }
+            ]
+        }
+
+        return job_dic
+    
 
     def generate_run_config(self,unicore_config):
         email = unicore_config["notification_email"]
diff --git a/src/hpc_deployer/utils/config.py b/src/hpc_deployer/utils/config.py
index 5c08067959dd3ac7ac149ed898051ae0db30b1d8..396d0c717edd5632f929ef718b709d4992aa8b3d 100644
--- a/src/hpc_deployer/utils/config.py
+++ b/src/hpc_deployer/utils/config.py
@@ -12,10 +12,9 @@ class Config:
         self.orchestrator_id = 99
         self.orchestrator_host = "localhost"
         self.orchestrator_portgrpc= "9200"
-        self.orchestrator_portwebui = "9201"
         self.orchestrator_cpu = 4
-        self.orchestrator_url = "/generic-parallel-orchestrator/orchestrator_container:1.8"
-        self.orchestrator_start= "pipenv run python3 -m /app/ai4eu.orchestratorservice"
+        self.orchestrator_url = "/generic-parallel-orchestrator/orchestrator_container:1.9-hpc"
+        self.orchestrator_start= "python -m ai4eu.orchestratorservice -p {}".format(self.orchestrator_portgrpc)
 
         self.path_to_blueprint = os.path.join(base_path, "blueprint.json")
         self.path_to_dockerinfo = os.path.join(base_path, "dockerinfo.json")
diff --git a/src/hpc_deployer/webui/app.py b/src/hpc_deployer/webui/app.py
index f98f3e8c2909edd9ae8ee1b4449865614185e3ae..15a99a929e4904e2bdbc7962bb45716e2a4d990a 100644
--- a/src/hpc_deployer/webui/app.py
+++ b/src/hpc_deployer/webui/app.py
@@ -93,10 +93,10 @@ def save_dockerinfo(input_list):
 
 def generate_unicore_config():
     for container in containers:
-        a = container["image_url"]
         path = urlparse(container["image_url"]).path
+        if path.startswith("7444"):
+            path = path[len("7444"):]
         container["image_url"] = config.docker_registery_url + path 
-        print(a)
 
     dic={
         "containers":containers
@@ -226,7 +226,7 @@ def configure_orchestrator():
         "name": config.orchestrator_name,
         "cpu": config.orchestrator_cpu,
         "portgrpc": config.orchestrator_portgrpc,
-        "portwebui": config.orchestrator_portwebui,
+        "portwebui": config.orchestrator_portgrpc,
         "startcommand": config.orchestrator_start,
         "image_url":config.orchestrator_url
     }
diff --git a/src/hpc_deployer/webui/templates/index.html b/src/hpc_deployer/webui/templates/index.html
index 34b1cbcc7e1987da652fb31f39cc403396c3f941..efe589f94513b5301252bf0a336696eb3a3f6c57 100644
--- a/src/hpc_deployer/webui/templates/index.html
+++ b/src/hpc_deployer/webui/templates/index.html
@@ -129,6 +129,10 @@
         </div>
       </div>
 
+      <form action="/job" method="get">
+        <button type="submit" class="btn btn-warning btn-block">Go to Orchestartor page</button>
+      </form>
+
     </div>
 
   </div>