ERROR [MNL0025]

i have following errors. Plz anyone can help me

ERROR [MNL0025] Layout DB Error code 18890, '1'.
ERROR [MNL0025] Layout DB Error code 18890, '1'.
ERROR [MNL0025] Layout DB Error code 18890, '1'.
ERROR [MNL0025] Layout DB Error code 21111, '329'.
ERROR [XLT0009] Unexpected unknown Exception.