500 Internal Server Error on Public Instance

I had done CTRL + F5 at the time I sent the previous message.
I have just tried again now, it does in fact work again.

Thank you very much.

I have gone to my settings and tried to enable the "Transfer" Category of type "Other", but I'm unable to turn it on.

HTTP Status 200, but a message appears:
"Error: Can not change the type because it has 6 transactions related!"