Jetpack blank

My Jetpack subtopics are all blank. I am not a commercial site. I’m running WP 6.7.1. My theme is old and only uses widgets and I need to move to blocks, so per instructions to do that I want to go into Jetpack settings but it’s blank, as are all the sub-menus under settings.

Even the “help” submenu!

Any suggestions how to get Jetpack up and running?

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