how to solve this problem I am a junior programmer

Question

WARNINGS: ?: (staticfiles.W004) The directory 'C:\Users\19828037\Desktop\APP DE CONTROL DE REPORTES\BackEnd\GestionReportes\static' in the STATICFILES_DIRS setting does not exist. It is impossible to add a non-nullable field 'nivel' to reporte without specifying a default. This is because the database needs something to populate existing rows. Please select a fix:

1. Provide a one-off default now (will be set on all existing rows with a null value for this column)
2. Quit and manually define a default value in models.py. Select an option: 2 PS C:\Users\19828037\Desktop\APP DE CONTROL DE REPORTES\BackEnd\GestionReportes>

I need Help!, the connection with the database I have ***by default SQLite3 ***this is as a test in the functionality soon migrate to mysql