Hello Dr. McLaren,
The first error was sorted out as soon as I created a con image. The value of xY.Ic is 2 from the most recent run.

However the 2nd error, for the last participant, is still occurring even after generating a con image. 

The error is 

VOI has 220 voxels in 2x2x2 space

VOI has 220 voxels in 2x2x2 space. This is in the the same space as the input data and functional mask.
ans =
name: 'Omnibus F-test for PPI Analyses'
STAT: 'F'
c: [54x17 double]
X0: [1x1 struct]
iX0: 'c'
X1o: [1x1 struct]
eidf: 17.0000
Vcon: [1x1 struct]
Vspm: [1x1 struct]
ans =
1 1
ans =
54 220

Error using svd
Input to SVD must not contain NaN or Inf.
Error in timeseries_extract (line 383)
Error in PPPI (line 461)

Ive attached the tmpxY.mat file for this participant.