UM plugin issue on Text area field

I received a message indicating that ‘Ultimate Member version 2.8.7 needs to be updated to function properly. Updating is necessary for the database structure and options associated with the current version.’ Should I proceed with this update? Upon checking my Kinsta platform, I see that I already have version 2.8.7 installed, but it also shows the message: ‘You have installed version 2.8.7. Your latest database version is 2.6.0. We recommend creating a backup of your site before starting the update process. Please do not exit the page until the update is complete.’

My primary issue arises when creating a textarea field in one of my Ultimate Member forms. Despite setting the height to 800px, it still displays at 100px when viewed, and links are not visible. What could be causing this, and is there a way to override it?

The page I need help with: [log in to see the link]