[BUG] Constant login request

[Surgical71]

DashMachine requests login again at random times. I am connecting to it directly and not via a proxy.

Expected behavior
Not being asked to constantly log in.

Screenshots

Portainer Logs

[2022-05-31 14:54:06,175] ERROR in app: Exception on /load_data_source [GET]
Traceback (most recent call last):
File "/usr/local/lib/python3.8/site-packages/flask/app.py", line 2447, in wsgi_app
response = self.full_dispatch_request()
File "/usr/local/lib/python3.8/site-packages/flask/app.py", line 1952, in full_dispatch_request
rv = self.handle_user_exception(e)
File "/usr/local/lib/python3.8/site-packages/flask_restful/init.py", line 272, in error_router
return original_handler(e)
File "/usr/local/lib/python3.8/site-packages/flask/app.py", line 1821, in handle_user_exception
reraise(exc_type, exc_value, tb)
File "/usr/local/lib/python3.8/site-packages/flask/_compat.py", line 39, in reraise
raise value
File "/usr/local/lib/python3.8/site-packages/flask/app.py", line 1950, in full_dispatch_request
rv = self.dispatch_request()
File "/usr/local/lib/python3.8/site-packages/flask/app.py", line 1936, in dispatch_request
return self.view_functionsrule.endpoint
File "/dashmachine/dashmachine/main/routes.py", line 64, in load_data_source
data = get_data_source(data_source)
File "/dashmachine/dashmachine/main/utils.py", line 94, in get_data_source
return platform.process()
File "/dashmachine/dashmachine/platform/ping.py", line 33, in process
command = ["ping", param, "1", self.resource]
AttributeError: 'Platform' object has no attribute 'resource'