Good morning and thank you for posting on the Final Fantasy XIV Technical Support Forums.

When did this start happening? Did anything change or update on your PC that coincides with this?

Does this error come up if you are using DirectX 9 mode? Select the 'Config' option on the launcher to change the DirectX mode.

Try updating your graphics card drivers if you have not done so already and make sure that you have other programs and especially overlays disabled.

We hope we can be of assistance in helping you enjoy the exciting world of Final Fantasy XIV!