Read the statement by Michael Teeuw here.
MMM-OpenWeatherMapForecast loading issue?
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 @croc_dad72 it goes in css/custom.css if the file doesn’t exist, create it 
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 @sdetweil the file is there, I just can seem to figure out what line to put it at, I have tried a couple spots but all it does is kill the module? 
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 @croc_dad72 eh? just edit the file with nano and add that stuff to the end on new lines 
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 I just read it take 2 hours for your app to be activated so put a new one in . You can delete you old one in weather maps creat a new one like say 
 Romford it should then appear and say activated
 Add to your file again wait .
 I am having a simpler problem as mine isn’t loading
 So going try again tomorrow.Best of luck lots of people are having similar issues. 
 If in the UK make shore its not us . Its easy make that mistake. ID 2639192 Romford test this ID
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 @croc_dad72 
 Hi yes mine not loading try reloading a new app key from open weather maps wait 2 hour before starting it up . create a new api you can delete you old one
 Add I’d try Romford 2639192
 Test
 Get eventing read go out shopping or if your like I can wait ha haNot sure if it’s going to work I am going to try this on my one tomorrow. 
 Good luck
 It may be broke .
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 Once your git things working get mini adapter use copy sd card on the pi it take a while but things go wrong you can start agin with your copy . 
 Yes it happen to me .
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 @videogame95 watch out, there are limited number of requests per day. once you hit it, nothing… 
