Hello, I am using this function from the documentation to send a verification email from the frontend on complete signup (custom ui): https://supertokens.com/docs/thirdpartyemailpassword/custom-ui/enable-email-verification#step-5-sending-the-email-verification-email However, it always goes into the "catch" block, giving me a "failed to fetch" error message, even though the email gets sent out normally (custom smtp and supertokens default both produce the same result). The docker log output also produces no errors. How can I troubleshoot this/look for more information?