Unhandled Rejection (Error): linear-algebra: [mul] op1 is 5 x 3 and op2 is 3 x 5

[agbozo1]

After creating a Linear Algebra Matrix (5 rows, 3 columns) from 5 arrays (from a database collection):
LinAlg.Matrix {data: Array(5), rows: 5, cols: 3}

I end up getting this error after passing the ahp function
Unhandled Rejection (Error): linear-algebra: [mul] op1 is 5 x 3 and op2 is 3 x 5

if anyone can help, i'd be grateful.