cncheck时出现的一些警告和错误，请帮忙看一下

limf

** WARNING **                         CP =     138.578   TIME= 11:12:36
The default contact stiffness used for contact pair identified by real  
constant set 10 is affected by defined inelastic material properties,   
even if the material properties are inactive.  You shoud confirm that   
the appropriate contact stiffness was used.                             

** ERROR **                           CP =     138.703   TIME= 11:12:36
The normal of target element 17683 is not consistent with the normal of
target element 18410.  Using ENORM command to correct it.               

** NOTE **                            CP =     141.250   TIME= 11:14:32
Deformable-deformable contact pair identified by real constant set 10   
and contact element type 3 has been set up.                             
Contact algorithm: Augmented Lagrange method
Contact detection at: Gauss integration point
Default contact stiffness factor FKN          1.0000   
The resulting contact stiffness               5485.7   
Default penetration tolerance factor FTOLN   0.10000   
The resulting penetration tolerance          0.68770   
Max. initial friction coefficient MU         0.35000   
Default tangent stiffness factor FKT          1.0000   
Default Max. friction stress TAUMAX          0.10000E+21
Average contact surface length                7.7320   
Average contact pair depth                    6.8770   
Default pinball region factor PINB            1.0000   
The resulting pinball region                  6.8770   
*WARNING*: Initial penetration is included.

** NOTE **                            CP =     141.250   TIME= 11:14:32
Max.  Initial penetration 3.552713679E-15 was detected between contact  
element 19139 and target element 17685.                                 
***************************

5 CONTACT PAIRS ARE SELECTED
     CONTACT PAIR HAVING REAL ID =    10 IS INITIALLY CLOSED
     CONTACT PAIR HAVING REAL ID =    20 IS INITIALLY CLOSED
     CONTACT PAIR HAVING REAL ID =    30 IS INITIALLY CLOSED
     CONTACT PAIR HAVING REAL ID =    40 IS INITIALLY CLOSED
     CONTACT PAIR HAVING REAL ID =    50 IS INITIALLY OPEN

出现了这些警告和错误，我不明白。请各位指点一下！