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you will need to check your central locking fuses. The bmw database shows fuses 9 24 27 48 49 52 60 67 71 in the glove box fuse panel as those to check, but you should also reference your own fuse card to double check.
if the fuses are good, then this means you have a failed general module which is the computer module that manages locking. This is a common issue. You can send it out for repair to https://www.bmwgm5.com/bmwgm5/ or replace it.
the general module is located behind the glove box as shown here: https://www.bmwgm5.com/GM5_Removal.htm
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