IMPORT DATA FAIL

IMPORT DATA FAIL

Hi, I have given support access to the database. Here are more details with the issues.

Importing DID WORK
Denominations (simple two column, no linked or multi-select data)
Suburbs (simple three column, no linked but one multi select data)

Importing NOT working The forms; 
Churches AND Schools will not let me import I went through first and removed ALL "no duplicates allowed" options - did not fix
I removed all field options for 'required field' - did not fix
In the Schools Form: I removed the two columns that were lookup fields for Formula columns in other forms (as this seems to always cause issues - using formula fields in lookups) - did not fix
Essentially I am left with; either there is something you guys can fix OR I have to essentially start from scratch which I would really prefer not to do. Note: All manual form entry works great, its just the bulk import - look forward to your reply.

Note: the error I get reads: Import Aborted: Field Validation Failed