Step-by-Step Tutorial: Homework of Session 4

Hey
My .stl file looks like this:
solid
facet normal +0.0000000E+00 +1.0000000E+00 +0.0000000E+00
outer loop
vertex -1.2762032E+00 +6.4799980E-01 +5.7774537E-02
vertex -1.4781550E+00 +6.4799980E-01 +1.7075706E-02
vertex -1.2921644E+00 +6.4799980E-01 +6.1525498E-02
endloop
endfacet
facet normal +0.0000000E+00 +1.0000000E+00 +0.0000000E+00
outer loop
vertex -1.6688230E+00 +6.4799980E-01 +6.3698818E-02
vertex -1.6692495E+00 +6.4799980E-01 +5.5626404E-02
vertex -1.6700000E+00 +6.4799980E-01 +5.9700000E-02
endloop
endfacet
.
.
.
facet normal -9.1935896E-01 +0.0000000E+00 +3.9341974E-01
outer loop
vertex -1.7179422E+00 +6.4799980E-01 +1.0342862E-01
vertex -1.7179422E+00 +6.5399980E-01 +1.0342862E-01
vertex -1.7195042E+00 +6.5399980E-01 +9.9778492E-02
endloop
endfacet
facet normal -9.9037126E-01 +0.0000000E+00 +1.3843686E-01
outer loop
vertex -1.7195042E+00 +6.4799980E-01 +9.9778492E-02
vertex -1.7195042E+00 +6.5399980E-01 +9.9778492E-02
vertex -1.7200539E+00 +6.5399980E-01 +9.5846422E-02
endloop
endfacet
endsolid

Seems a bit strange when compared to the examples and to some that I found on the internet. I uploaded it to simscale without any problems, but when I try to simulate it i get the error “The job execution was aborted, possibly due to a numerical instability. Review the log to identify reasons: unphysically large field values, extremely small time step size, etc. Modifying numerical settings and time step size could resolve the issue”
Anyone has any clue on how to solve it (think these error might be related to the format that the stl file was exported)
PS: Im using siemens nx10