Search the documentation
If API Connector hangs at the loading screen, it's likely because you're signed into the extension with multiple Google accounts at the same time, which Google doesn't support. To resolve, log out of all your Google accounts and then log back in first with the account you use with API Connector. Alternatively, log in with a new incognito window.
For other questions, check out our article on troubleshooting to resolve a lot of common issues. If you still need help, please post your question in our user forum so other people can help and learn from your question too. Or, just leave a message below and I'll get back to you as soon as I can.
Ana at Mixed Analytics