Difficult to advise you as we need more information - size of pot/compost, feeding etc- and a photo of the problem would help?
Lots of things could cause bud problems such as too much rain or watering can cause deformed/swollen buds that dont open.

Probably being in a container - this one wants to get 4 feet by 3 feet, and roses like to put down deep roots. If you can't put it in the ground, try a container which is 2 feet deep and 12 inches across as a minimum and keep it well watered - the browning of the leaves round the edges and shrivelling of the buds suggests not enough water.

I have the same rose and it is my favourite. It struggled in it's container but is much happier now it is in the ground.

I also had the same problem with Crown Princess Margarta of Sweden and Munstead Wood which was absolutely laden with flowers earlier in the year but is now struggling in a pot, but it must wait until the new border is ready.

Well, right now it is a lot greener with the all of the rain we've had lately so does make me think I wasn't watering it enough. It's even gots some buds on it but whether or not they'll develop, it's too soon to tell. The container is only 12 inches deep. I think I'll have a look for a bigger container or consider putting it in the ground. Thanks for the advice!