fix error handling

[canhtrinh]

Description/Reasoning

For all errors that arise, the standard message "Due to popular demand" appears for all cases.

We need to make it so that error messages reflect the actual underlying message.

Current Behaviour

Expected Behaviour

Steps to reproduce (for bugs)

Relevant Logs or Files

In Sergey's case: "can simulate one issue when we see the "due to popular demand" pop-up.
if the user is not logged into metamask [after staying away for days] or they don't have a metamask at all [try incognito mode], we give them the error. should bring up metamask log-in in case 1, ask to install metamask in case 2 ?"