SQL for Bamboo plugin failed to run the script file

[Jasmine sultan salahudeen]

simple	20-Feb-2018 16:34:06	Starting task 'SQL Execution' of type 'com.appfire.bamboo.sql:sql'
simple	20-Feb-2018 16:34:06	Start SQL statements
simple	20-Feb-2018 16:34:06	--------------------
simple	20-Feb-2018 16:34:06	��A�L�T�E�R� �T�A�B�L�E� �e�m�p�l�o�y�e�e�s� �D�R�O�P� �p�f�_�n�u�m�b�e�r�;�
simple	20-Feb-2018 16:34:06	End SQL statements
simple	20-Feb-2018 16:34:06	------------------
simple	20-Feb-2018 16:34:06	SQL exception: ORA-00900: invalid SQL statement
simple	20-Feb-2018 16:34:06	Finished task 'SQL Execution' with result: Failed