If your scope only accept 0.98 diameter eyepieces you need a 0.98 to 1.25" adapter. However, using one of these will place your camera even further outside of the focal plane so you'll have to add a 2x Barlow to get focus. Link to the t-ring set you bought?

https://www.amazon.com/Solomark-0-965-Telescope-Eyepiece-Adapter/dp/B00OXKG8BS