Opening a Computer Room on Chol HaMoed

I manage a computer room. Every year on Chol HaMoed I lock it so that people will not enter. May I open it on Chol HaMoed, since it serves the clients for the needs of the festival, and there are other computer rooms that are open, so I may incur a loss if the clients switch to them permanently? It should be noted that the room operates completely automatically, and I do not operate it on Chol HaMoed.

Hello and blessings 

You may open it and announce that it is intended for permitted uses, such as needs of the festival or preventing a loss. 

The fact that the clients may become accustomed to going to other rooms is also a reason for permitting it. 

Mishnah Berurah siman 539, se’if katan 44
Since it is considered a davar ha’aved — for if he does not lend to them and they go elsewhere, they will become accustomed to coming to him, and will no longer come to him; and in this case he is not required to spend money for the joy of Yom Tov:

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