429 errors are:
429 Too Many Requests
The 429 status code indicates that the user has sent too many requests in a given amount of time ("rate limiting").
The response representations SHOULD include details explaining the condition, and MAY include a Retry-After header indicating how long to wait before making a new request.
Most web hosts don't limit the rate of crawling with this type of error. Search engines need to be able to crawl all your pages to be able to index your website. If Googlebot can't fetch your pages due to this error when it crawls, you are going to have SEO problems.
Here is a thread where somebody has a similar issue, also with GoDaddy hosting. One poster was able to crawl the problematic site with the Screaming Frog crawler and reproduce the issue. When they crawled faster, they got more 429 errors.
The only ways to get this problem fixed would be to:
- Contact GoDaddy and have them disable this error, or allow Googlebot to crawl faster
- Find a new hosting company and move your website to it
- Get Googlebot to crawl slower by adjusting the crawl rate in Google Webmaster Tools (but that only takes effect for 90 days at which point you would have to set it again)