How to upgrade plan

[Besciamella]

Hello,

I have deployed Flowise AI locally with the Starter plan. Now, I have deployed Flowise AI on EC2 and I want to upgrade my plan.

I have two questions:

1. How do I upgrade plan after deployment? When I visit flowise at port 3000 I only see chatflows, no way to change plan (http://ec2-11-111-111-111.eu-north-1.compute.amazonaws.com:3000/chatflows)
2. Since I deployed it online all my flows previously working are giving me errors: like failed to read _modelType or failed to find paths. [e.g., "TypeError: Cannot read properties of undefined (reading '_modelType')"]. Any idea on what may be the cause?

thank you!! If I can solve these 2 issues would be happy to upgrade