I tried signing in with google , and got and error!
Looks like you are opening your web browser directly? Or not using chrome.
Step 1. Ensure Chrome is installed
Step 2. Open MHD App
Step 3. Open side menu and click LOGIN
Step 4. Select Chrome as the browser you would like to use to complete the operation if your phone prompts you
Step 5. Use your login method of choice (Google, FB, create MHD account, etc)
Report back what happens after each step please