Did you get a chance to update the instance to the latest stable version (2.20.9) and test again after reopening the workspace/logout-login? If the error persists, go with Kajooleng’s suggestion.
@yasmine I have passed this to the support team to look at, You don’t need to open multiple posts and if you have a ticket open with support it is normally best to respond to them there.
From what they have said this was resolved 2 hours ago so you should be good now, Please also keep in mind that execution limits are typically reset on the 1st of each month.