here's the frequency count.
o - 5
b - 5
k - 8
r - 4
u - 6
x - 2
g - 4
h - 2
L - 4
s - 6
i - 4
f - 4
w - 5
v - 2
q - 4
p - 3
n - 3
t - 6
j - 3
z - 4
e - 2
a - 4
d - 3
y - 1
I don't see any repeating patterns to suggest a vigenere.
the sample is too small to make frequency effective. Assuming this is encoded from english, the question mark at the end suggests the text is reversed.