RE: Eratix by Eflite
The bottom of one of my Eratix wings suffered something similar. After many flights, the covering became loose and tore a good part of it. Fortunately, I heard the flopping sound and was able to bring it down without any problems. I didn't have the clear covering, so I had to cover the gap with white covering. I did the same thing to the other wing so it looks like it was meant to be that way.
Glad to hear you will be back flying it soon. I really enjoy flying mine. Since I'm retired, I fly almost every day. When I go to the field I fly it at least two or three times. More if I'm the only one out.