Can't Login Plex Account @ Plex Client on Android 4.4

Here is logs:

01-28 07:09:02.341 i: Fetching [method:GET] https://plex.tv/api/v2/user/privacy
01-28 07:09:03.223 w: [Metrics] Couldn’t fetch privacy map from plex.tv.
01-28 07:09:04.011 i: Fetching [method:GET] https://plex.tv/api/v2/user/privacy
01-28 07:09:04.823 w: [Metrics] Couldn’t fetch privacy map from plex.tv.
01-28 07:09:05.073 i: Fetching [method:GET] https://plex.tv/api/v2/user/privacy
01-28 07:09:05.862 w: [Metrics] Couldn’t fetch privacy map from plex.tv.
01-28 07:09:06.929 i: Fetching [method:GET] https://plex.tv/api/v2/user/privacy
01-28 07:09:07.752 w: [Metrics] Couldn’t fetch privacy map from plex.tv.
01-28 07:09:07.968 i: Fetching [method:GET] https://plex.tv/api/v2/user/privacy
01-28 07:09:08.731 w: [Metrics] Couldn’t fetch privacy map from plex.tv.
01-28 07:09:09.955 i: Fetching [method:GET] https://plex.tv/api/v2/user/privacy
01-28 07:09:10.773 w: [Metrics] Couldn’t fetch privacy map from plex.tv.
01-28 07:09:10.775 i: Fetching [method:GET] https://plex.tv/api/v2/user/privacy
01-28 07:09:11.543 w: [Metrics] Couldn’t fetch privacy map from plex.tv.
01-28 07:09:13.813 i: Fetching [method:GET] https://plex.tv/api/v2/user/privacy
01-28 07:09:14.686 w: [Metrics] Couldn’t fetch privacy map from plex.tv.
01-28 07:09:34.409 i: [pms] /10.1.2.6:7434 - GET /logging
01-28 07:09:34.798 i: [pms] /10.1.2.6:7437 - GET /favicon.ico
01-28 07:10:55.648 i: [UserAction] Navigate back.
01-28 07:10:55.713 i: Resuming HomeActivity.
01-28 07:10:55.729 i: [MediaProviderMerger] Ignoring server 脱机 because it’s too old.
01-28 07:10:57.762 i: Creating LandingActivity.
01-28 07:10:57.767 i: [Activity] Resuming the application, attempting to download item and children.
01-28 07:10:57.774 i: [Boot] LandingActivity took 9ms to run create behaviours.
01-28 07:10:57.855 i: Resuming LandingActivity.
01-28 07:10:57.884 i: Fetching [method:GET] https://plex.tv/api/v2/user/privacy
01-28 07:10:58.757 w: [Metrics] Couldn’t fetch privacy map from plex.tv.
01-28 07:11:01.425 i: Fetching [method:POST] https://plex.tv/pins.json
01-28 07:11:01.490 i: Fetching [method:GET] https://plex.tv/api/v2/user/privacy
01-28 07:11:02.406 w: [Metrics] Couldn’t fetch privacy map from plex.tv.
01-28 07:11:03.313 i: Fetching [method:POST] https://plex.tv/pins.json
01-28 07:11:05.263 i: Fetching [method:POST] https://plex.tv/pins.json
01-28 07:11:09.223 i: [pms] /10.1.2.6:7596 - GET /logging

The latest Plex app doesn’t support Android 4.4. You have this running on a TV? The first Android TV was based on Android 5.

I’m running a old version Plex Client 6.17.

Is this a recent change? I’m not aware of any changes on Plex’s side that could have affected signing in if it worked before. If you can provide me the full log as a text file I can take a look.