For table '%1', the number of entries in the ml_column table is greater than the number of columns in the remote table
This warning tells you that you have extra column entries in the ml_column table for the given table. This is only a problem
if (i) your synchronization scripts reference the column names via named parameters, and (ii) they reference a column name
whose index is greater than the number of columns in the table. In this case, an error will be issued after this warning.