Thank you all for your suggestions, I will look one more time tonight and decide on whether I will go into fixing or not. Nobody mentioned balsa filler with thin CA as an alternative. It seems like it is not a viable method. Thanks to RCU, I learned this quick. I did not used balsa filler before didn't know whether it will have the strength.

This is my first kit, overall the plane come up good, I will post the pictures when I am done. It is an easy build kit definetly.

And this is definetly an experince for me, while sanding the LE, I will make sure I don't sand the ribs again,

Thanks,