Here is what is wrong:
Total number of images found: 2
Total number of bmatrices: 1
In other words, there are two diffusion weighted images but bval/bvec files only specify scan parameters for one image. You should have two rows/cols in both bval and bvec file.
Another note: Your data, with only two diffusion images, will not have enough information to obtain a good diffusion model like DTI, ODF etc and BDP may actually fail computing them. Other things like distortion correction and registration should still work as expected.