How can I use the task items?

I got lots of task items on my bag but I don't know how to use them. Does anyone knows what they are for and how can I use them?

if youre talking about the crystal fragments im not sure. supposedly when you collect the rewards from the 10 simple fragments the next one appears but that doesn't happen with me. I think its a bug so I just sell em instead

U got it right, its the same with me. It was just taking space off my bag so i'm sellin them too

the way it works is the game selects a set fragment for you for that day and you collect 10 of them then its done for the day or atleast thats how it works for me. the way it seems to work though is you collect 10 simple first day then 10 normal next and so on in progression and i think it starts over if you dont get the 10 on day but it wont start over till you say finish 10 super.. example being you get all the way to 10 super and then you skip a full day of playing then you come back you will still need 10 super so you get it and then the next day its back to 10 simple again.

never does that for me -.- its always the 10 simple no matter how many days I go. I gave up on collecting after a week of the 10 simples. my game just must suck xD

The glitch is spam