Have been trying to create a Lead Generation Card, each time I submit it i'm taken to a Twitter/Error Page


As the title suggests, I am unable to create a lead generation card. has been happening for around a week, any help?

I had previously created one which worked fine around 2/3 weeks ago, but this time I wanted to create one in order to promote it but constantly seeing Twitter/Error Page! There doesn’t seem to be any solution as I waited a few days in between to trying again and it’s still not working!