Error message when de-selecting coins in a swap [solved]

I have another one: I get an error pop-up when I try to de-select a coin in a swap. Interestingly after I refresh the page, the site de-selects the coin, so I don't understand the error message.

Similarly (this started today, after the accept cookies message) that when clicking either
I wish to get it
I don't wish to get it
there is an error message, which when clicked on then accepts whichever I ticked.

That is an example at random, and I ticked the first box, which is faded out while
the error message is at the top - when I click the message the tick is accepted.

I have the same problem. Each time I check/uncheck a coin within the swap, I get the error.
(Also, when upvoting this thread I get an error, but the vote is posted after a refresh.)

Bug has been fixed but it may take some time to reflect everywhere.

Hello,
There was an issue impacting several Numista functionalities. It was fixed yesterday night. Unfortunately it will take some time be effective, from 1 to 48 hours depending on each user.