Please Help !! I am getting error in SP, But records are getting saved

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MySQL

CREATE PROCEDURE Student_InsertTimeLine(
_studentUserCode varchar(300),
_userFrom varchar(300),
_userTo varchar(300),
_operation varchar(300),
_msgTitle varchar(4000),
_activity varchar(4000)
)
BEGIN
SET @strTblQuery = CONCAT("INSERT INTO " , _studentUserCode ,"_Timeline (studentUserCode,userfrom,userto,operation,MessageTitle,activity,dateCreated) VALUES('",_studentUserCode,"','", _userFrom ,"','", _userTo ,"','", _operation ,"','",_msgTitle,"','", _activity ,"','",NOW(),"')");

PREPARE stmt1 FROM @strTblQuery;
EXECUTE stmt1;
DEALLOCATE PREPARE stmt1;
END;

CALL Student_InsertTimeLine('UA78', 'BP11', 'UA78',
        'Attendance','Attendance', concat_ws(' ','Attendance Taken On ', '2013-07-01', '. Attendance Status: ','Full Absent', ' for Class: ', 'PUCCL-01', ', Section: ', 'First Batch'  ) );

ERROR:

SQL execution error #1065. Response from the database:
Query was empty