diff --git a/examples/upgrade_server/npbackup_upgrade_server.conf.dist b/examples/upgrade_server/npbackup_upgrade_server.conf.dist
index a600090..009c7a8 100644
--- a/examples/upgrade_server/npbackup_upgrade_server.conf.dist
+++ b/examples/upgrade_server/npbackup_upgrade_server.conf.dist
@@ -4,22 +4,18 @@ http_server:
   listen: 0.0.0.0
   port: 8080
   users:
-    - upgrade_client:
+    - username: upgrade_client_user
       password: super_secret_password
       permissions:
-      - audience:
+        audience:
         - private
         - public
 
+
 upgrades:
-  # Build dir should contain the following structure
-  # /VERSION
-  # VERSION is a file containing a single line with the currently built NPBackup version, example: 2.2.0
-  # /{platform}/{arch}/{binary}/{audience}
-  # Current platforms are 'windows', 'linux'
-  # Current arches are 'x64', 'x86', 'arm' and 'arm64'
-  # In each folder there should be a npbackup or npbackup.exe binary depending on the platform
   data_root: /var/npbackup_upgrade_server/dist
   # We'll store a CSV containing backup clients that upgrade here
   statistics_file: /var/npbackup_upgrade_server/stats.csv
 
+  # See github wiki for more explanation of the contents of data_root dir
+
diff --git a/upgrade_server/upgrade_server/api.py b/upgrade_server/upgrade_server/api.py
index d9be7c8..4e0a893 100644
--- a/upgrade_server/upgrade_server/api.py
+++ b/upgrade_server/upgrade_server/api.py
@@ -65,11 +65,11 @@ def get_current_username(credentials: HTTPBasicCredentials = Depends(security)):
     for user in config_dict["http_server"]["users"]:
         try:
             if secrets.compare_digest(
-                credentials.username.encode("utf-8"), user.encode("utf-8")
+                credentials.username.encode("utf-8"), user.get("username").encode("utf-8")
             ):
                 if secrets.compare_digest(
                     credentials.password.encode("utf-8"),
-                    config_dict["http_server"]["users"]["user"]["password"].encode(
+                    user.get("password").encode(
                         "utf-8"
                     ),
                 ):
@@ -92,10 +92,14 @@ def get_user_permissions(username: str):
     Returns a list of permissions
     """
     try:
-        return config_dict["http_server"]["users"][username]["permissions"]
+        for user in config_dict["http_server"]["users"]:
+            if user.get("username") == username:
+                return user.get("permissions")
     except Exception as exc:
-        logger.error(f"Failed to get user permissions: {exc}")
-        return []
+        logger.error(f"Failed to get user permissions from configuration file: {exc}")
+        logger.debug("Trace", exc_info=True)
+    return []
+
 
 
 @app.get("/")
@@ -161,10 +165,10 @@ async def current_version(
 
     try:
         has_permission = (
-            True if audience.value in get_user_permissions(auth)["audience"] else False
+            True if audience.value in get_user_permissions(auth).get("audience") else False
         )
     except Exception as exc:
-        logger.error(f"Failed to get user permissions: {exc}")
+        logger.error(f"Failed to get user permissions (1): {exc}")
         has_permission = False
 
     data = {
@@ -261,10 +265,10 @@ async def upgrades(
 
     try:
         has_permission = (
-            True if audience.value in get_user_permissions(auth)["audience"] else False
+            True if audience.value in get_user_permissions(auth).get("audience") else False
         )
     except Exception as exc:
-        logger.error(f"Failed to get user permissions: {exc}")
+        logger.error(f"Failed to get user permissions (2): {exc}")
         has_permission = False
 
     data = {
@@ -363,10 +367,10 @@ async def download(
 
     try:
         has_permission = (
-            True if audience.value in get_user_permissions(auth)["audience"] else False
+            True if audience.value in get_user_permissions(auth).get("audience") else False
         )
     except Exception as exc:
-        logger.error(f"Failed to get user permissions: {exc}")
+        logger.error(f"Failed to get user permissions (3): {exc}")
         has_permission = False
 
     data = {
diff --git a/upgrade_server/upgrade_server/crud.py b/upgrade_server/upgrade_server/crud.py
index 33e0cc8..414f7d3 100644
--- a/upgrade_server/upgrade_server/crud.py
+++ b/upgrade_server/upgrade_server/crud.py
@@ -99,7 +99,7 @@ def store_host_info(destination: str, host_id: dict) -> None:
         data = (
             datetime.now(timezone.utc).isoformat()
             + ","
-            + ",".join([value if value else "" for value in host_id.values()])
+            + ",".join([str(value) if value else "" for value in host_id.values()])
             + "\n"
         )
         with open(destination, "a", encoding="utf-8") as fpw: