Issue with Updating plugins?

Hello,
I am not sure it this is the right place where to report this issue.. but I found only now that when I do a software update check I see for the following modules:

- Backup scheduler 0.0.5
- Octolapse 0.4.1
- Resource Monitor 0.3.2
- Spool Manager Plugin 1.3.4

the following error
Unknown error while checking for update, pls check the logs
OK.. where exactly? I did check the logs and I cannot find anything related to the failing update check

Apparently I don't have any issues.. but I wonder why I have this problem.. and how to solve it..
Thanks in advance

System Info
browser.user_agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:87.0) Gecko/20100101 Firefox/87.0
connectivity.connection_check: 8.8.8.8:53
connectivity.connection_ok: true
connectivity.enabled: true
connectivity.online: true
connectivity.resolution_check: octoprint.org
connectivity.resolution_ok: true
env.hardware.cores: 4
env.hardware.freq: 1400
env.hardware.ram: 385024000
env.os.bits: 32
env.os.id: linux
env.os.platform: linux2
env.plugins.pi_support.model: Raspberry Pi 3 Model A Plus Rev 1.0
env.plugins.pi_support.octopi_version: 0.17.0
env.plugins.pi_support.throttle_state: 0x0
env.python.pip: 19.3.1
env.python.version: 2.7.16
env.python.virtualenv: true
octoprint.safe_mode: false
octoprint.version: 1.5.3
printer.firmware: Marlin Creality 3D

Hello @spanzetta !

Could you please share the logs... (as it was mentioned in the template you have deleted)

Internet connection errors by the looks of it:

2021-04-19 16:51:59,497 - octoprint.plugins.softwareupdate - ERROR - Could not check resource_monitor for updates
Traceback (most recent call last):
  File "/home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/softwareupdate/__init__.py", line 1496, in _get_current_version
    target, check, online=online, credentials=credentials
  File "/home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/softwareupdate/version_checks/github_release.py", line 348, in get_latest
    apikey=apikey,
  File "/home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/softwareupdate/version_checks/github_release.py", line 122, in _get_latest_release
    RELEASE_URL.format(user=user, repo=repo), timeout=(3.05, 30), headers=headers
  File "/home/pi/oprint/local/lib/python2.7/site-packages/requests/api.py", line 76, in get
    return request('get', url, params=params, **kwargs)
  File "/home/pi/oprint/local/lib/python2.7/site-packages/requests/api.py", line 61, in request
    return session.request(method=method, url=url, **kwargs)
  File "/home/pi/oprint/local/lib/python2.7/site-packages/requests/sessions.py", line 530, in request
    resp = self.send(prep, **send_kwargs)
  File "/home/pi/oprint/local/lib/python2.7/site-packages/requests/sessions.py", line 643, in send
    r = adapter.send(request, **kwargs)
  File "/home/pi/oprint/local/lib/python2.7/site-packages/requests/adapters.py", line 529, in send
    raise ReadTimeout(e, request=request)
ReadTimeout: HTTPSConnectionPool(host='api.github.com', port=443): Read timed out. (read timeout=3.05)

hmm.. how it is possible?.. I am currently using it and it works fine..

I am sure it has no Internet connection issues..

as example pls see the output of Terminal (with Putty)

pi@octopi:~ $ sudo apt-get update
Get:1 http://raspbian.raspberrypi.org/raspbian buster InRelease [15.0 kB]
Hit:2 http://archive.raspberrypi.org/debian buster InRelease
Get:3 http://raspbian.raspberrypi.org/raspbian buster/main armhf Packages [13.0 MB]
99% [3 Packages 13.0 MB/13.0 MB 100%] 1076 kB/s 0s

What else can be cause ?

Thanks

Solved myself by clicking on "Advanced settings" (just below the "Check for update now" button) and clicking on "Force check for update (overrides cache used for update checks)
After this click.. all errors are gone
Thank anyway