excuse or apologise

[Roadster]

Does this sound right to you:
We made this error and hope that you could excuse that.:?:

 

[Rover_KE]

Yes, excuse is OK, but apologise isn't.

 

[MikeNewYork]

Does this sound right to you:
We made this error and hope that you could excuse that.:?:

You could say: "We apologize for our error and hope that you can excuse that mistake.

 

[5jj]

The simplest thing to say is "We apologise for our mistake".