I put the gear lever on the off and when I land I can not lower the landing gear again. some help thanks

Full names in the PMDG forums please.

 

Could you be a little more concise?  How do you select gear off?  If it is assigned to a controller button make sure it is assigned correctly.  How are you trying to lower the gear?  Mouse or keyboard or controller button?

Press the g key on the keyboard to raise the landing gear ... and the same to lower it ... but when I give it to go down and no longer goes down it stays locked the lever does not work with the keyboard or the mouse.