Add guideline for fixing broken mailto links

content/guidelines/declaring.en.md

@@ -193,10 +193,14 @@ You can only use our copyrights or [trademarks (or any similar marks)](https://l
 
 Write a filter in the declaration.
 
-### Troubleshooting and Communication
+- - -
+## Troubleshooting and Communication
+
+While using the graphical user interface for contribution, you may come across a broken page or error while fetching terms due to the engine's limitations, we encourage you to refresh the page or contact the team by tapping the “Let us know” button.
+
+<img width="586" alt="Screen Shot 2023-08-24 at 18 06 08" src="https://github.com/OpenTermsArchive/docs/assets/41474439/6b31580a-8a2a-47cc-88a4-8b02a19cf181">
 
-If you encounter issues due to the engine's limitations in reading website URL, such as the fetchDocument error, don't worry, either refresh the page or click on the "Let us know" button, in order to get in touch with the team.
+In some cases, clicking on this button may lead you to a blank page, which is often caused by your default mailto handler not being set to Gmail. 
+We recommend following [these instructions](https://support.google.com/chrome/thread/57026170/how-to-add-gmail-as-default-mailto-handler?hl=en) to add Gmail as your default mailto handler and trying again.
 
-There's a possibility that this button leads you to a blank page. This is often caused by your default mailto handler not being set to gmail. We recommend following [these instructions](https://support.google.com/chrome/thread/57026170/how-to-add-gmail-as-default-mailto-handler?hl=en) and trying again.
 
-Thank you for your contribution!