diff --git a/pynode_next/core.py b/pynode_next/core.py
index 1d7adb7..3a128c5 100644
--- a/pynode_next/core.py
+++ b/pynode_next/core.py
@@ -5,7 +5,7 @@
 
 class Core:
     def __init__(self, port=5050):
-        self.port = 5050
+        self.port = port
         base_path = os.path.relpath(__file__)
         self.custom_ui = f"{Path(base_path).parent}/ui.html"
         self.callback = None
@@ -13,7 +13,12 @@ def __init__(self, port=5050):
 
     def run(self, func):
         """A function that runs a different function in the PyNode Next web environment."""
-        self.server = algx.http_server(port=self.port, file=self.custom_ui)
+        while 1:
+            try:
+                self.server = algx.http_server(port=self.port, file=self.custom_ui)
+                break
+            except:
+                self.port += 1
         print("serving ui found at", self.custom_ui)
         
         self.canvas = self.server.canvas()
diff --git a/test.py b/test.py
index 21bcb78..4a97b67 100644
--- a/test.py
+++ b/test.py
@@ -7,7 +7,6 @@
 
 
 def test():
-    raise Error('hello')
     graph.add_node("a")
     graph.add_node("b")
     pause(500)