I am having all sorts of problems with my AutoCAD Land Desktop. When I try to create a profile I get all these errors and when I try to save my computer crashes. Please help. I need this fixed ASAP. Thanks everyone.

Delete existing profile layers [Yes/No] <Yes>: n *Invalid*
18.286537
Unknown command "LDD". Press F1 for help.
18.286537
Unknown command "LDD". Press F1 for help.
0.000000
Unknown command "LDD". Press F1 for help.
Unknown command "495.00". Press F1 for help.
*Invalid*
Unknown command "LDD". Press F1 for help.
Unknown command "LDD". Press F1 for help.
Unknown command "LDD". Press F1 for help.
Unknown command "SASKENERGY ACROSS 11TH ST". Press F1 for help.
Unknown command "PEGCT". Press F1 for help.
Unknown command "PVGRID". Press F1 for help.
Unknown command "PEGCT". Press F1 for help.
Unknown command "PFGCT". Press F1 for help.
Unknown command "PEGC". Press F1 for help.
Unknown command "PEGL". Press F1 for help.
Unknown command "PEGR". Press F1 for help.
Unknown command "PFGC". Press F1 for help.
Unknown command "PGRID". Press F1 for help.
Unknown command "PGRIDT". Press F1 for help.
2
3
20.000000

Unknown command "LDD". Press F1 for help.
20.000000

Unknown command "LDD". Press F1 for help.
20.000000

Unknown command "LDD". Press F1 for help.
3.906492E+005

Unknown command "LDD". Press F1 for help.
5.774225E+006

Unknown command "LDD". Press F1 for help.
495.000000

Unknown command "LDD". Press F1 for help.
0.000000

Unknown command "LDD". Press F1 for help.
286.770982

Unknown command "LDD". Press F1 for help.
Unknown command "LEFT". Press F1 for help.
Unknown command "PEGLT". Press F1 for help.
Unknown command "PEGRT". Press F1 for help.
Unknown command "PDGL". Press F1 for help.
Unknown command "PDGR". Press F1 for help.