As you can read in this discussion, the episode list of season 1 of Marmalade Boy cannot be seen.
There's an error 500 when this loads. I hope it helps you find the issue.
Thanks in advance 😊
It has something to do with your timezone. This works, while this fails.
I've run into issues like this before due to certain dates and timezone combinations not being correct. I'll have to take a look. I've created a new ticket for this here. Thanks for the report.