Issue with AdvanceToNextPageAsync

can anyone help me?
for some reason DataStorePages:AdvanceToNextPageAsync is not functioning as intended and isnt advancing to the next page. i dont know why this is but i know that it is only happening when i use the cursor argument when creating the DataStorePages instance.
any help would be appreciated.

i also keep getting throttled but have no idea how to stop throttling. if anyone has a solution to either of these problems that would be amazing

No matter how much i delay it it still wont work, i kinda need this urgently