v5.1.2 of the tmdb addon seems to have had its api key suspended. Kodi 17.6, addon repo is up to date. Tested on multiple computers
Quote:16:45:59.646 T:4100 DEBUG: VideoInfoScanner: Fetching url 'https://api.tmdb.org/3/movie/181808?api_key=92db8778ccb39d825150332b0a46061d&language=en' using The Movie Database scraper (content: 'movies')
16:45:59.647 T:7024 DEBUG: Thread VideoInfoDownloader start, auto delete: false
16:45:59.647 T:7024 DEBUG: ADDON::CScraper::GetVideoDetails: Reading movie 'https://api.tmdb.org/3/movie/181808?api_key=92db8778ccb39d825150332b0a46061d&language=en' using The Movie Database scraper (file: 'C:\Users\username\AppData\Roaming\Kodi\addons\metadata.themoviedb.org', content: 'movies', version: '5.1.2')
16:45:59.674 T:7024 DEBUG: CurlFile::Open(0CC8C6B0) https://api.tmdb.org/3/movie/181808?api_...anguage=en
16:45:59.907 T:7024 ERROR: CCurlFile::FillBuffer - Failed: HTTP returned error 401
16:45:59.907 T:7024 ERROR: CCurlFile::Open failed with code 401 for https://api.tmdb.org/3/movie/181808?api_...anguage=en
16:45:59.907 T:7024 ERROR: ADDON::CScraper::Run: Unable to parse web site
16:45:59.907 T:7024 ERROR: CVideoInfoDownloader:rocess: Error getting details from https://api.tmdb.org/3/movie/181808?api_...anguage=en
16:45:59.907 T:7024 DEBUG: Thread VideoInfoDownloader 7024 terminating
rocess: Error getting details from 
