WV Form IT-140 is giving you an error message, you may need to clear your cache.
Your browser stores recently visited webpages as temporary files in a cache, which enables the pages to load more quickly when revisited.
However, a full or corrupted cache can cause problems in TurboTax, so sometimes you need to clear your cache (that is, remove these temporary files).
Apple's official support site doesn't appear to contain instructions for clearing the cache in Safari. Your best bet is to search the Internet for clear Safari cache or similar search terms.
If your cache isn't the issue, it might be best to wait a day or two and check back again, or you can print and mail them. Here is a link to the Department of Revenue.
