Permission Problems

Hey guys,

i am developing an addon at the moment and everytime i try tu run it i get a permission error:

2020-12-02 16:23:28,672 - webServer.server - INFO - start hue entertainment
----------------------------------------
Exception happened during processing of request from ('192.168.178.121', 58181)
Traceback (most recent call last):
  File "/usr/local/lib/python3.8/socketserver.py", line 650, in process_request_thread
    self.finish_request(request, client_address)
  File "/usr/local/lib/python3.8/socketserver.py", line 360, in finish_request
    self.RequestHandlerClass(request, client_address, self)
  File "/usr/local/lib/python3.8/socketserver.py", line 720, in __init__
    self.handle()
  File "/usr/local/lib/python3.8/http/server.py", line 427, in handle
    self.handle_one_request()
  File "/usr/local/lib/python3.8/http/server.py", line 415, in handle_one_request
    method()
  File "/diyhue/webServer/server.py", line 746, in do_PUT
    Popen([configManager.coreConfig.get_path("entertain-srv", project=True), "server_port=2100", "dtls=1",
  File "/usr/local/lib/python3.8/subprocess.py", line 854, in __init__
    self._execute_child(args, executable, preexec_fn, close_fds,
  File "/usr/local/lib/python3.8/subprocess.py", line 1702, in _execute_child
    raise child_exception_type(errno_num, err_msg, err_filename)
PermissionError: [Errno 13] Permission denied: '/diyhue/entertain-srv'

I already have chmod a+rwx in my Dockerfile.

Any ideas how to fix this?