Unable to add notes

Hi community, 

As a Crunchbase Pro user, I would like to add notes on companies' profiles. But I'm no longer able to do it. Each time I try the same error message appears "We couldn't save your note. Please try again. If the problem persists, please contact support."

Plus I don't know how to contact support. Therefore I'm asking if someone has the answer - even though it seems to be a technical issue. 

Best, 

Hector