Decode the cryptogram was encoded from 2x2 matrix

the cryptogram was encoded with 2x2 matrix What is the message?

5 2 25 11 -2 -7 -15 -15 32 14 -8 -13 38 19 -19 -19 37 16

I first tried to find the inverse of this code and then mutiply with the original one to get a decoded code, but it keeps saying invalid in the inverse command and I can't figure why, please suggest some solutions for me? ( uhm I do not ask for the rest of the code don't get me wrong)

This is my code

X =[5 2; 25 11; -2 -7; -15 -15; 32 14; -8 -13; 38 19; -19 -19; 37 16];

Y = inv(X);

C = mtimes(X,Y);

disp(C)

Answer 1

[KALYAN ACHARJYA]

"but it keeps saying invalid in the inverse command and I can't figure why"

>> X =[5 2; 25 11; -2 -7; -15 -15; 32 14; -8 -13; 38 19; -19 -19; 37 16]

X =

5     2
25    11
-2    -7
-15   -15
32    14
-8   -13
38    19
-19   -19
37    16

Error:

Matrix Rule: Invertible matrices must be square, please see the reason it's why?

https://math.stackexchange.com/questions/441685/why-are-nonsquare-matrices-not-invertible