Sorry, I’ve been … swamped
Since you’ve moved from GoDaddy, check your wp-config.php for lines like this:
You don’t need those here. In fact, that second one is a really bad idea.
You should also remove this if it’s there:
Deleting your cache the ‘hard’ way would be done by SSH or SFTP. Go in and delete the contents of the ~/domain.com/wp-content/cache/ folder. It won’t impact your site, except that it’ll rebuild the cache.
Generally I suggest people totally uninstall the cache plugins, all the extra files (like /wp-content/db.php and /wp-content/advanced-cache.php and /wp-content/object-cache.php) and reinstall the plugin. That forces it to pick up new paths.