exec apps.mo_global.set_policy_context returns error

Hi Experts,

After login in TOAD for first time ,when we execute --> exec apps.mo_global.set_policy_context('S','101');

We get the following error

ORA-20001: Oracle error -942: ORA-00942: table or view does not exist
 has been detected in fnd_global.set_nls.
ORA-06512: at "APPS.APP_EXCEPTION", line 72
ORA-06512: at "APPS.FND_GLOBAL", line 265
ORA-06512: at "APPS.FND_GLOBAL", line 1582
ORA-06512: at "APPS.FND_GLOBAL", line 2029
ORA-06512: at "APPS.FND_GLOBAL", line 2604
ORA-06512: at "APPS.MO_GLOBAL", line 1044
ORA-06512: at line 1

But if we execute it again in the same session its shows the successful message