I have found that after one request per day the google map of pset8/mashup doesn't load properly. I mean it displays the message that the site is for development purpose and doesn't load the map. So, I can load the map only once a day and I came to know this via the error message in the js console of chrome. Any idea why cs50x is limiting the usage quota cause this way I can work for only few hours and load my pset map only once. I can't work for long hours on the psets and so the continuity to solve the problem breaks. Any suggestions will be appreciated!