Error during rendering of region "Log In".

ORA-04031: unable to allocate 2200 bytes of shared memory ("large pool","unknown object","kxs-heap-b","bind var buf") ORA-06512: at "APEX_050000.WWV_FLOW_LANG", line 1530 ORA-06512: at "APEX_050000.WWV_FLOW_LANG", line 1597 ORA-06512: at "APEX_050000.WWV_FLOW_ERROR", line 1002 ORA-06512: at "APEX_050000.WWV_FLOW_FORMS", line 1616 ORA-04031: unable to allocate 16328 bytes of shared memory ("large pool","unknown object","koh-kghu sessi","pmucalm coll")