Some errors on crack simulation

Hi, I'm university student in korea, who is using abaqus 6.14.

Recently, I got some problems on crack simulation in static analyis. I made a inclined crack of wall structure but it shows a error message when I submit my analysis on job menu.

I used the contour integral method for crack simulation, and checked my mesh on contour region. All meshes looks fine to me. Also, the analysis went well when I removed the crack.
I just tried to search at google, but I think that it is a rare problem because I couldn't get the answers from it.

I'll post the image of my error message below. It is the image which is slightly different with my situation I explained. I took this image from simple crack simulation problem which I tried, to solve this problem. But both case had the same error message. If someone knows what kind of error is this, or knows how to deal with that problem, please reply to me. Any help or suggestion will be appreciated. :)