I have been using Plex on my Debian server and have had no problems. For some reason all of a sudden it will not download movie posters automatically. The logs show a match but a 403 forbidden error. I updated to the latest version to see if that helped but no dice. I have included the log. Any help is appreciated as I have made no changes to the server otherwise.
2015-09-08 21:36:41,482 (7f8c9d1db700) : INFO (core:609) - Started plug-in
2015-09-08 21:36:41,483 (7f8c9d1db700) : DEBUG (socketinterface:160) - Starting socket server
2015-09-08 21:36:41,484 (7f8c9d1db700) : DEBUG (runtime:1111) - Created a thread named ‘start’
2015-09-08 21:36:41,484 (7f8c9d1db700) : INFO (socketinterface:184) - Socket server started on port 60419
2015-09-08 21:36:41,485 (7f8c9d1db700) : INFO (pipeinterface:25) - Entering run loop
2015-09-08 21:36:41,485 (7f8c9d1db700) : DEBUG (runtime:717) - Handling request GET /:/prefixes
2015-09-08 21:36:41,487 (7f8c9d1db700) : DEBUG (runtime:814) - Found route matching /:/prefixes
2015-09-08 21:36:41,488 (7f8c9d1db700) : DEBUG (runtime:918) - Response: [200] MediaContainer, 148 bytes
2015-09-08 21:36:41,511 (7f8c92364700) : DEBUG (runtime:717) - Handling request GET /:/plugins/com.plexapp.agents.imdb/messaging/function/X0FnZW50S2l0OlNlYXJjaA__/Y2VyZWFsMQoxCmxpc3QKMApyMAo_/Y2VyZWFsMQoyCmRpY3QKZGljdAo2CnMyCmVuczQKbGFuZ2IwczYKbWFudWFsYjFzNwpwcmltYXJ5aTAKczcKdmVyc2lvbnIxCnM2Cmt3YXJnc3M1Ck1vdmllczEwCm1lZGlhX3R5cGU3CnMxNgoxZjE3MDJjOGMzNjEwMGU2czE3Cm9wZW5TdWJ0aXRsZXNIYXNoczkKSm9obiBXaWNrczQKbmFtZXM0CjIwMTRzNAp5ZWFyczYyCiUyRmRhdGElMkZWaWRlb3MlMkZNb3ZpZXMlMkZKb2huJTIwV2ljayUyMCgyMDE0KSUyMDEwODBwJTJFbWt2czgKZmlsZW5hbWVzNDAKYzUxMTM1NDQ1OWI0MzBkMjcwMjQ5YjQ4N2Y5ZWZlNDU5MGM4M2I3OHM4CnBsZXhIYXNoczIKLTFzOApkdXJhdGlvbnMzCjc1OXMyCmlkcjAK
2015-09-08 21:36:41,525 (7f8c92364700) : DEBUG (runtime:814) - Found route matching /:/plugins/com.plexapp.agents.imdb/messaging/function/X0FnZW50S2l0OlNlYXJjaA__/Y2VyZWFsMQoxCmxpc3QKMApyMAo_/Y2VyZWFsMQoyCmRpY3QKZGljdAo2CnMyCmVuczQKbGFuZ2IwczYKbWFudWFsYjFzNwpwcmltYXJ5aTAKczcKdmVyc2lvbnIxCnM2Cmt3YXJnc3M1Ck1vdmllczEwCm1lZGlhX3R5cGU3CnMxNgoxZjE3MDJjOGMzNjEwMGU2czE3Cm9wZW5TdWJ0aXRsZXNIYXNoczkKSm9obiBXaWNrczQKbmFtZXM0CjIwMTRzNAp5ZWFyczYyCiUyRmRhdGElMkZWaWRlb3MlMkZNb3ZpZXMlMkZKb2huJTIwV2ljayUyMCgyMDE0KSUyMDEwODBwJTJFbWt2czgKZmlsZW5hbWVzNDAKYzUxMTM1NDQ1OWI0MzBkMjcwMjQ5YjQ4N2Y5ZWZlNDU5MGM4M2I3OHM4CnBsZXhIYXNoczIKLTFzOApkdXJhdGlvbnMzCjc1OXMyCmlkcjAK
2015-09-08 21:36:41,525 (7f8c92364700) : INFO (agentkit:936) - Searching for matches for {‘openSubtitlesHash’: ‘1f1702c8c36100e6’, ‘name’: ‘John Wick’, ‘year’: ‘2014’, ‘filename’: ‘%2Fdata%2FVideos%2FMovies%2FJohn%20Wick%20(2014)%201080p%2Emkv’, ‘plexHash’: ‘c511354459b430d270249b487f9efe4590c83b78’, ‘duration’: ‘-1’, ‘id’: ‘759’}
2015-09-08 21:36:41,548 (7f8c92364700) : DEBUG (networking:166) - Requesting ‘http://127.0.0.1:32400/library/metadata/759/tree’
2015-09-08 21:36:41,663 (7f8c92364700) : INFO (init:137) - checking hash search vector: http://meta.plex.tv/movie/hash/c5/c511354459b430d270249b487f9efe4590c83b78.xml
2015-09-08 21:36:41,699 (7f8c92364700) : DEBUG (networking:166) - Requesting ‘http://meta.plex.tv/movie/hash/c5/c511354459b430d270249b487f9efe4590c83b78.xml’
2015-09-08 21:36:41,915 (7f8c92364700) : INFO (init:169) - Scoring {‘tt2911666’: [0, u’John Wick’, u’2014’, 1900, 8208, 0]}
2015-09-08 21:36:41,915 (7f8c92364700) : INFO (init:436) - ---- HASH RESULTS MAP ----
2015-09-08 21:36:41,915 (7f8c92364700) : INFO (init:436) - {‘tt2911666’: [0, u’John Wick’, u’2014’, 1900, 8208, 100]}
2015-09-08 21:36:41,933 (7f8c92364700) : DEBUG (networking:166) - Requesting ‘http://meta.plex.tv/m/2911666?lang=en&ratings=1&reviews=1’
2015-09-08 21:36:42,036 (7f8c92364700) : DEBUG (preferences:258) - Loaded preferences from DefaultPrefs.json
2015-09-08 21:36:42,066 (7f8c92364700) : DEBUG (preferences:178) - Loaded the user preferences for com.plexapp.agents.imdb
2015-09-08 21:36:42,067 (7f8c92364700) : INFO (init:436) - Adding hash match: John Wick (2014) score=100
2015-09-08 21:36:42,067 (7f8c92364700) : INFO (init:436) - Found perfect match with plex hash query.
2015-09-08 21:36:42,068 (7f8c92364700) : DEBUG (runtime:918) - Response: [200] str, 636 bytes
2015-09-08 21:36:42,165 (7f8c92364700) : DEBUG (runtime:717) - Handling request GET /:/plugins/com.plexapp.agents.imdb/messaging/function/X0FnZW50S2l0OlVwZGF0ZU1ldGFkYXRh/Y2VyZWFsMQoxCmxpc3QKMApyMAo_/Y2VyZWFsMQoxCmRpY3QKMTAKczIKZW5zNApsYW5nYjFzNQpmb3JjZWIwczgKcGVyaW9kaWNzMwo3NTlzNApkYmlkaTAKczcKdmVyc2lvbm5zMTAKcGFyZW50R1VJRG5zOApwYXJlbnRJRHM1Ck1vdmllczEwCm1lZGlhX3R5cGVzNDMKY29tLnBsZXhhcHAuYWdlbnRzLmltZGI6Ly90dDI5MTE2NjY%40bGFuZz1lbnM0Cmd1aWRzOQp0dDI5MTE2NjZzMgppZHIwCg__
2015-09-08 21:36:42,166 (7f8c92364700) : DEBUG (runtime:814) - Found route matching /:/plugins/com.plexapp.agents.imdb/messaging/function/X0FnZW50S2l0OlVwZGF0ZU1ldGFkYXRh/Y2VyZWFsMQoxCmxpc3QKMApyMAo_/Y2VyZWFsMQoxCmRpY3QKMTAKczIKZW5zNApsYW5nYjFzNQpmb3JjZWIwczgKcGVyaW9kaWNzMwo3NTlzNApkYmlkaTAKczcKdmVyc2lvbm5zMTAKcGFyZW50R1VJRG5zOApwYXJlbnRJRHM1Ck1vdmllczEwCm1lZGlhX3R5cGVzNDMKY29tLnBsZXhhcHAuYWdlbnRzLmltZGI6Ly90dDI5MTE2NjY@bGFuZz1lbnM0Cmd1aWRzOQp0dDI5MTE2NjZzMgppZHIwCg__
2015-09-08 21:36:42,182 (7f8c92364700) : DEBUG (model:32) - Loading model with GUID com.plexapp.agents.imdb://tt2911666?lang=en
2015-09-08 21:36:42,184 (7f8c92364700) : ERROR (model:201) - Cannot read model from /var/lib/plexmediaserver/Library/Application Support/Plex Media Server/Metadata/Movies/a/bb01dcc430a71aeb55f633c20a54b15bdfd5e6c.bundle/Contents/com.plexapp.agents.imdb
2015-09-08 21:36:42,185 (7f8c92364700) : DEBUG (networking:166) - Requesting ‘http://127.0.0.1:32400/library/metadata/759/tree’
2015-09-08 21:36:42,194 (7f8c92364700) : DEBUG (networking:161) - Fetching ‘http://meta.plex.tv/m/2911666?lang=en&ratings=1&reviews=1’ from the HTTP cache
2015-09-08 21:36:42,253 (7f8c92364700) : DEBUG (networking:166) - Requesting ‘http://127.0.0.1:32400/services/iva/metadata/2911666?lang=en&extras=1’
2015-09-08 21:36:42,256 (7f8c92364700) : ERROR (networking:217) - Error opening URL ‘http://127.0.0.1:32400/services/iva/metadata/2911666?lang=en&extras=1’
2015-09-08 21:36:42,257 (7f8c92364700) : INFO (init:765) - Error obtaining Plex movie data for 2911666: HTTP Error 403: Forbidden
2015-09-08 21:36:42,272 (7f8c92364700) : DEBUG (model:225) - Serializing to /var/lib/plexmediaserver/Library/Application Support/Plex Media Server/Metadata/Movies/a/bb01dcc430a71aeb55f633c20a54b15bdfd5e6c.bundle/Contents/com.plexapp.agents.imdb/Info.xml
2015-09-08 21:36:42,273 (7f8c92364700) : DEBUG (runtime:918) - Response: [200] str, 16 bytes