This is a known issue, we are working on it.
This thread was added on November 27, 2019, with posts from Shogun-san, JagexLabcoat.
Original Post
https://i.redd.it/behcqglej9141.png
Fix will probably go out some time tomorrow, apologies for any missed progress
The prayer tasks say you can use infernal ashes but those do not work /u/jagexlabcoat /u/shogun-san
This is also being worked on :)