R12.0.6 Error Generating forms using adadmin

Hi,
When generating forms using adadmin, the following errors occur :

LOG FILE
File name :adadminreg.log
--------------------------------------------------

The following Oracle Forms objects did not generate successfully:

au resource JTFNOTES.pll
jtf forms/US JTFECMAN.fmx
jtf forms/US JTFNOTES.fmx
jtf forms/US JTFTKMAN.fmx


LOG FILE
File name :  adwork001.log
--------------------------------------------------
ERROR generating form "forms/US/JTFTKMAN.fmx" from input file

Compiling WHEN-CHECKBOX-CHANGED trigger on ORDER_BY_DATE item in NOTES_CONTROL data block...
Compilation error on WHEN-CHECKBOX-CHANGED trigger on ORDER_BY_DATE item in NOTES_CONTROL data block:
PL/SQL ERROR 0 at line 1, column 2
Statement ignored


LOG FILE