Here is the service manual for your washer.
WM2077CW LG Front Load Washer Service Repair Manual 32.8MB, 44 pages.
This is a large file and will take some time to download.
If you are on a dial up connection it will take longer.

Page 19 in the service manual has the information for the LE code.
LE =
LOCKED MOTOR ERROR• The connector (3-pin, male, white) in the MOTOR
HARNESS is not connected to the connector
(3-pin, female, white) of STATOR ASSEMBLY.
• The electric contact between the connectors
(3-pin, male, white) in the MOTOR HARNESS
and 4-pin, female, white connector in the MAIN PWB
ASSEMBLY is bad or unstable.
• The MOTOR HARNESS between the STATOR
ASSEMBLY and MAIN PWB ASSEMBLY is cut (open
circuited).
• The hall sensor is out of order/defective.