create table TableA (
  id integer not null,
  Name varchar(100),
  BoolField boolean
);

1;name 1;TRUE
2;name 2;FALSE

insertex into TableA from csv 'data_a.csv' delimiter ';';

Error in script: P:\info-2\_db\info6-8.sql
Error occurred while executing following statement (line 1582):
--------  STATEMENT ----------
insertex into TableA (id,Name,BoolField) from csv 'P:\info-2\_db\data_a.csv' delimiter ';' 

--------  ERROR ----------
can't format message 13:697 -- message file P:\info-2\bin\firebird.msg not found.
Dynamic SQL Error.
SQL error code = -303.
conversion error from string "TRUE".

Source line (#2) is: 1|name 1|TRUE

 FAILED!