Summary

Clicking upgrade on the upgrade license user tier in Version & Licenses page resulted to 500 page

Steps to Reproduce

1. Have a license with user limit reaching maximum
2. Click on the upgrade button
   

Expected Results

• Should lead to the following page : https://www.atlassian.com/purchase/upgrade

Actual Results

• Leads to the following page : https://www.atlassian.com/purchase/500
  

Workaround

• Manually go to the https://www.atlassian.com/purchase/upgrade for user upgrade.