+10 Duct tape then study Raz's repair. There are semi-temporary methods, and then there is the permanent fix that Raz detailed.
The other temporary repair would be a cargo strap around the circumference of the entire trailer. Not aesthetically pleasing, but it is how I got my Trillium
home after purchase.
Somewhat interesting to me is Raz's Trillium
is relatively new (2010). Yet Trillium did not fix this obvious flaw.