[Bug] DatabaseClosedError: DatabaseClosedError Database has been closed

[roboticsforkidsja-dotcom]

Describe the bug What is the problem?

To reproduce Steps to reproduce the behavior:

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior What did you expect to happen instead?

Screenshots There is a saying that a picture is worth a 1000 words. Screenshots really help to identify and solve problems.

DatabaseClosedError: DatabaseClosedError Database has been closed
    at https://code.pybricks.com/static/js/main.1e852e2a.js:2:1585206
    at je (https://code.pybricks.com/static/js/main.1e852e2a.js:2:1528312)
    at new Le (https://code.pybricks.com/static/js/main.1e852e2a.js:2:1527808)
    at i._whenReady (https://code.pybricks.com/static/js/main.1e852e2a.js:2:1585153)
    at i._transaction (https://code.pybricks.com/static/js/main.1e852e2a.js:2:1590476)
    at i.transaction (https://code.pybricks.com/static/js/main.1e852e2a.js:2:1589486)
    at https://code.pybricks.com/static/js/main.1e852e2a.js:2:519931
    at R.<computed> (https://code.pybricks.com/static/js/main.1e852e2a.js:2:1386565)