Can't open a new seek for Chess960

Why can't I start a 960 seek? Every time I try I get the message:

Oops?! We noticed the following errors in your form:

• Your rating range must include your own rating. Try lowering your minimum rating or increasing your maximum rating.

Is it because my normal chess ranking is quite far above my 960 ranking?

yes that's the exact problem.

After changing from standard to chess960, you'll need to change the rating interval you are looking for. It needs to be withing your own rating.

Your rating is 1110, so the minimum rating needs to be below that.

How do I change the rating interval? There is only an option to change the interval for normal chess.

I think you have to probably first click on "random opponent" and then you can change it.