On the same use case of TEIID30181 I now got the error in object:
TEIID30183 Message:TEIID30183 Text parse error: Non-whitespace character found between the qualifier and the delimiter in text line 16,161 in Unknown.
SQLState: TEIID30183

the row should be:
istsc_pgee021002 Direzione Didattica Statale "Franco Rasetti" Castiglione del Lago ANTONIETTA MANNUCCI 06061 PG Umbria www.dirclago.it Via Carducci, 25 Dirigente Scolastico Istituti di Istruzione Statale di Ogni Ordine e Grado Pubbliche Amministrazioni S 80005650546 pgee021002@pec.istruzione.it pec pgee021002@istruzione.it altro null null null null null null 0

the only difference I find between the previous rows that passed without problems is that a field has double quote in its content.

The delimiter is tabulation so there should not be any problem.
Could it be this the problem and how to solve it?
Thanks