Thanks for posting in the Community! You're doing great for doing the browser troubleshooting to get rid of the issue you're having with STP lodgment. If you've confirmed that your browser is up-to-date and it is still not working after restarting your device, I would suggest to contact our Customer Care Team to further investigate on this one for you. Here's how to contact customer support:
Click on the Help (?) icon.
Select Assistant and enter Contact support in the chat field, and then click the Send icon.
You'll be asked about your concern, and you'll need to enter and send it.
If you can't see any related topics to your issue on what they shared, select No, get me a human.