Implementation error = 403 Forbidden message

I needed an API that would get me some info about certain appsIds (for example: 932381063). I am using https://itunes.apple.com/{country}/app/{advertiser}, and was expecting about 20 calls a minute. Now, I have an implementation error which resulted in 403 Forbidden message. Now, I cannot access Apple Store or do other basic functions. Is my IP banned or is something else at play here?