Resolve Control Center loading issues
Cached stored data may prevent Control Center from loading. To resolve this issue, you may need to manually clear your browser’s cache.
In the list below, you can find links with instructions for clearing the cache of some common browsers:
For Internet Explorer, refer to How to delete the contents of the Temporary Internet Files folder.
For Mozilla Firefox, refer to How to clear the Firefox cache.
For Google Chrome, refer to Delete browsing data in Chrome.
For Opera, refer to Get to know Opera.
For Microsoft Edge, refer to How to manage and clear your cache and cookies.
For Apple Safari, refer to Clear cookies in Safari on Mac.
After you clear your browser’s cache, try to log in to Control Center.