some errors

i get a few errors i don't know if they are really severe or just a minor error

IDF file written: C:\DIVA\Thermal\Grasshopper\Projects\analyzethisscalewinter5.0\analyzethisscalewinter5.0.idf
E+ batch file written: C:\DIVA\EnergyPlusV7-0-0\DIVA_for_Grasshopper.bat
Weather file: BEL_Brussels.064510_IWEC
Attempting to run batch file...
Batch file launched successfully.
** Warning ** Sizing:Parameters: note Timesteps in Averaging Window entered value=[4] is less than 1 hour (i.e., 12 timesteps).
** Warning ** GetSurfaceData: There are 70 coincident/collinear vertices; These have been deleted unless the deletion would bring the number of surface sides < 3.
** Severe ** GetSurfaceData: There are 40 degenerate surfaces; Degenerate surfaces are those with number of sides < 3.
************* EnergyPlus Completed Successfully-- 71 Warning; 40 Severe Errors; Elapsed Time=00hr 00min 52.76sec
Post-process: Calculating heating energy consumption, assuming efficiency of 0.8
Post-process: Calculating cooling energy consumption, assuming efficiency of 3