Oracle Grid Data Collection Stopped

Question

Hi Everyone,
My Environment details:
Oracle Grid 10g 10.2.0.5.0
Oracle Database 10g 10.2.0.4.0
OS -Redhat Linux 5.4 x86_64
Today i tried to take the awr from Grid console for one of my database but there are no recent snapshot available and the data collection is stopped between agent and database. Please find the error details from emagent.trc
when i checked the agent services its seems running fine but i don't know why the data collection is not happening.
Please advice me how to resolve this issue.
Thanks & Regards,
Shan
SQL = "/* OracleOEM */
DECLARE
instance_number NUMBER;
task_id NUMBER;"...
LOGIN = dbsnmp/<PW>@(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=netwon-vip.teleglobe.com)(PORT=1522))(CONNECT_DATA=(SID=newton)))
2011-12-30 16:41:01,541 Thread-3958328240 ERROR fetchlets.sql: ORA-06550: line 11, column 8:
PL/SQL: ORA-00942: table or view does not exist
ORA-06550: line 10, column 1:
PL/SQL: SQL Statement ignored
ORA-06550: line 27, column 41:
PL/SQL: ORA-00942: table or view does not exist
ORA-06550: line 26, column 2:
PL/SQL: SQL Statement ignored
2011-12-30 16:41:01,541 Thread-3958328240 ERROR engine: [rac_database,regiprd,latest_hdm_db_metric_helper] : nmeegd_GetMetricData failed : ORA-06550: line 11, column 8:
PL/SQL: ORA-00942: table or view does not exist
ORA-06550: line 10, column 1:
PL/SQL: SQL Statement ignored
ORA-06550: line 27, column 41:
PL/SQL: ORA-00942: table or view does not exist
ORA-06550: line 26, column 2:
PL/SQL: SQL Statement ignored
2011-12-30 16:41:01,541 Thread-3958328240 WARN collector: <nmecmc.c> Error exit. Error message: ORA-06550: line 11, column 8:
PL/SQL: ORA-00942: table or view does not exist
ORA-06550: line 10, column 1:
PL/SQL: SQL Statement ignored
ORA-06550: line 27, column 41:
PL/SQL: ORA-00942: table or view does not exist
ORA-06550: line 26, column 2:
PL/SQL: SQL Statement ignored

Answer 1

Log onto the database using SQL*Plus, run the following statements, and post the output.
SELECT owner, object_type, COUNT(*)
FROM dba_objects
WHERE status = 'INVALID'
GROUP BY owner, object_type;
SELECT comp_id, version, status
FROM dba_registry;