Steps leading to error
- Access the "Create issue from Jira Cloud" shortcut
- Select the correct project type and fill out the required fields with the correct input type
- Click Submit

Just implemented this app for the first time the other day
I was receiving this error at first and could not resolve it, but when I logged on to my laptop the next day, the issue went away. I didn't change anything. I introduced this app to my team members and they are now getting this error and I don't know how I got it to go away.
Troubleshooting steps taken that didn't work
- Quitting and reopening Slack
- Went into Slack integration tab in Jira and see if any settings can be changed